What should you use to turn the water off and open the door?

I need the answers to B and C as (as fractions please) which of these shows the result of using the first equation to substitute for y in the second equation, then combining like terms. y=2x 2x+3y=16 a. 4x=16 b. 5y=16 c. 8x=16 d. 5x=16 The sum of the digits of a two-digit number is 5. If nine is subtracted from the number, the digits will be reversed. Find the number and the equation Suppose an object moves along the y-axis (marked in feet) so that its position at time x (in seconds) is given by the f(x) = 96x -16x^2, find the following. A) The instantaneous velocity function v = f (x).B) The velocity when x = 0 and x = 4 seconds.C) The time(s) when v = 0 A________ chemical bond is a strong attraction between two or more atoms. Which of the following statements is NOT true regarding executive orders? A Executive orders do not need congressional approval. B Executive orders can be overturned by the Supreme Court. C Executive orders can be issued by both the President and state governors. D Executive orders are a collection of laws imposed by authority. A piano has a mass of 99 kg. What is the weight of the piano? Mice living on a granite hillside have coloration ranging from light to dark. The surfaces of the granite rocks are either very dark or very light. Dark mice hiding on dark patches are difficult to see and light mice hiding on light patches are equally camouflaged. Mice with gray fur can be seen everywhere and are preyed upon more heavily. What kind of selection is this? An account at a commercial bank designed for people who want to earn a higher savings rate is a(n) __________ account. Question options: regular savings account, ,regular checking ,share draft , or money market account Find the value of this expression if x = 3and y = -1.xy5 Match each feature with the correct dynasty. NEED ASAP! tyLuke is writing a research report for class. He is researching the topic of cell phone use at school. He created thebroad research question, "What are the benefits of cell phones?" How could he best refine the question to narrowhis focus?a- At what age should students get their first cell phone?b- Should parents monitor students who use cell phones?c- Why would students need a cell phone at school?d- What is the best type of cell phone for students to use at school? - Find the circumference of the circle with the given radius or diameter. Use 3.14.diameter = 10 cmA. 15.7 cmB. 314 cmC. 78.5 cmD. 31.4 cm Compare strontium with rubidium in terms of the following properties: a. Atomic radius, number of valence electrons, ionization energy. b. Strontium is smaller than rubidium. c. Rubidium is smaller than strontium. d. Strontium has more valence electrons. e. Rubidium has more valence electrons. f. Strontium has a larger ionization energy. g. Rubidium has a larger ionization energy. For the imine synthesis reaction, the two reactants react in melting state. How is that possible since the melting points for both ortho-vanilin and para-toluidine are above room temperature Which types of electron orbitals will have higher energy than a 4d orbital?A. 4pB. 3sC. 4fD. 5s Another one omg this is annoying What is the distance betweem points W and X to the nearest hundredth? Fortunately, there are only a few Americans who place appetite above patriotism. The overwhelming majority realize that the food we send abroad is for essential military purposes, for our own and Allied fighting forces, and for necessary help in areas that we occupy.Poster about rationing.Both the speech and the poster convey the importance of Your portfolio is 240 shares of Callahan, Inc. The stock currently sells for $94 per share. The company has announced a dividend of $2.50 per share with an ex-dividend date of April 19. Assuming no taxes, what is your portfolio value as of April 19