A store has sold 90 notebooks, which is 20% of all the notebooks they had. How many notebooks did the store

have at first?

A) 450

B) 23

C) 108

D) 500

What is 617 divided by 5?

A rectangle has a perimeter of 36 in. The length and width are scaled by a factor 2.5. What is the perimeter of the resulting rectangle? Enter your answer in the box. in.

How do you simplify? - 3 + (-1)

Simplify 3 (2x - 5). 1.) 6 x - 8 2.) - 6 x - 15 3.) 6 x - 15 4.) 5 x - 2 this is multiple choice

If y is proportional to x and y = - 15 when x = - 20, what is the value of x when y = 12? Show your work

Gabe tried to use the law of cosines to find an unknown angle measure in a triangle. His work is shown. What is Gabe's error?

Ronald and Tim both did their laundry today. Ronald does laundry every 6 days and Tim does laundry every 9 days. How many days will it be until Ronald and Tim both do laundry on the same day again?

Function f is an exponential function. x - 2 0 2 4 6 f (x) 1/64 1/16 1/4 1 4 By what factor does the output value increase as each input value increases by 1?

Each side of a square is increased 7 inches. when this happens, the area is multiplied by 4. how many inches in the side of the original square?

Fred's dog groomer charges $25 to give his dog a haircut. The groomer is increasing the price for a haircut by 35%. What will Fred pay the groomer the next time his dog has a haircut?