What are reasons A, B, and C in the proof?

I'm being volume of cylinder with 13 in. radius and 30 in height answer choices in pic

Consider a graph for the equation y= -3x+4. what is the y intercept? a) 4 b) -4 c) 3 d) -3

Choose a second initial value that is 0.01 greater than the initial value from question 9. iterate it using the function, f, ten times. if necessary, you can round your results to the nearest ten-thousandth.