The rental rate for a hedge trimmer has a one time fee of $20 plus $30 for each day of the rental. the graph shows points representing the total cost of the rental.

which linear equation, in slope-intercept form, that models the total cost of the rental over time?

a. y = 20x

b. y = 30x + 20

c. y = 30x

d. y = 20x + 30

e. y = 2x + 80

The administrator of a large assisted living facility wanted to know the average age of the residents living at the facility. he randomly selected 12 residents and determined their age, listed here: 80, 65, 75, 83, 68, 73, 88, 79, 94, 72, 79, 68 what's the average age of the sample of residents? a. 79 years old b. 68 years old c. 75 years old d. 77 years old

Aprojectile is thrown upward so that its distance above the ground after t seconds is given by the function h(t) = -16t2 + 704t. after how many seconds does the projectile take to reach its maximum height?

Which graph represents the parent function of y=(x+2)(x-2)