Which equation represents a linear function? Group of answer choices

y – 5 = x(–x + 2)

y – 5 = x – 20

y(x – 1) = 9

y(y – 1) = x + 25

The diameter of a ball is 8 in. what is the volume of the ball? use 3.14 for pi. enter your answer as a decimal in the box. round only your final answer to the nearest hundredth.

If i have a 24 in loaf of bread and i cut it into two pieces one 9 in how long was the other

Given a: b and b: c, find a: b: c. write the ratio in simplest form. a: b=6: 10 and b: c=21: 33