A photographer made a 5-inch by 8-inch print of a photo. He then made a 10-inch by 16-inch print of the same photo. Which scale factor was use to create the larger photo from the smaller photo?

A. 2

B. 4

C. 5

D. 6

E. 8

Gina is the chairperson of a group. Last week, she set up 22 folding chairs for the group meeting. This week, some of the members could not attend the meeting, so she set up only 15 chairs. How many chairs did Gina set up in the past two weeks?

Amy must choose a number between 55 and 101 that is a multiple of 3, 6, and 7. Write all the numbers that she could choose. If there is more than one number, separate them with commas.

What is 10 multiplied by 10 divided by 5

A 12% increase of c dollars. what is the new cost?

If 2x^2+5x-12 = (2x-3) (x+4) which equations should be solved to find the roots of 2x^2+5x-12=0

The product of 4 and the sum of a number and 12 is at most 16

Are all circles the same size

In a competition sequence threw the javelin 69.93 meters this was an improvement of 8% on his previous best throw calculate the length of his previous best throw

Miguel is staining a wooden box. To determine how much stain he needs, he'll need to find the surface area of the box. True False

A serving of a certain breakfast cereal contains 5000 milligrams of salt. Raheem eats a 30 milligrams serving of that cereal. How much salt would that be in kilograms that he ate