This is what the question says:

12) students were asked to write a formula for the
length of a rectangle by using the formula for its
perimeter, p = 21 + 2w. three of their responses
are shown below.
1.1 = {p – aw
ii. 1 = {(p – w)
iii. 1 = p2w
which responses are correct?
a) i and ii, only
b) ii and iii, only
c) i and iii, only
d) i, ii, and iii

Someone answer asap for ! a ball is rolled down a ramp. the height, f(x), in meters, of the ball x seconds after it is released is modeled by the function f(x) = x²- 10x + 25 for all values of x from 0 to 5. which statement about the ball is true? a. the maximum height of the ball is 5 meters b. the height of the ball increases from 0 to 5 meters above the ground. c. the ball has traveled 5 meters when it reaches the bottom of the ramp. d. the ball has been traveling for 5 seconds when it reaches the bottom of the ramp