Which of the following is an even function?

a.) f(x) = (x – 1)^2
b.) f(x) = 8x
c.) f(x) = x^2 – x
d.) f(x) = 7

One side of a rectangle is 7 feet shorter than seven times the other side. find the length of the shorter side if we also know that the perimeter of the rectangle is 306 feet.

Suppose i pick a jelly bean at random from a box containing one red and eleven blue ones. i record the color and put the jelly bean back in the box. if i do this three times, what is the probability of getting a blue jelly bean each time? (round your answer to three decimal places.)

Write an inequality for this description. - one fourth of the opposite of the difference of five and a number is less than twenty.