Apply the commutative property to 13 * 7 * 21 to rearrange the terms and still get the same solution.

A. 13 + 7 + 21

B. 12 * (7 * 21)

C. (13 * 7) * 21

D. 21 * 7 * 13

Mrs. Patil bought 4 packs of pencils for her class. Then she bought 3 more packs of pencils. There are 12 pencils in a pack. How many pencils did she buy?

Zachary wants to buy a rug for a room that is 12 ft wide and 15 ft long. He wants to leave a uniform strip of floor around the rug. He can afford to buy 108 ft2 of carpeting. What dimensions should the rug have?

Which table represents a function with a greater rate of change than y = 3x? x f (x) -3 - 12 -1 - 4 4 16 x f (x) -2 6 -1 3 1 - 3 x f (x) 1 0.25 8 2 16 4 x f (x) -9 3 -3 1 21 - 7

How can I solve this question step by step? In the interior angles of a regular polygon sum to 1260 degrees. how many sides does it have?

13 pts 3. Mr. Sanchez's class sold fruit pies for $1.65 each and Mr. Kelly's class sold bottles of fruit juice for $1.36 each. Together, the classes sold 79 items and earned $118.17 for their school.

What will happen to the volume of a cylinder if the radius is halved? A. 1/4 as large B. 1/5 as large C. 1/3 as large D. 1/2 as large

43.586 to the nearest tenth, hundredth and whole number

Find the slope of the following line - 4x-7y=-28

Two airplanes left the same airport and arrived at the same destination at the same time. The first airplane left at 8:00 a. m. and traveled at an average rate of 496 mph. The second airplane left at 8:30 a. m.

Sue now has $490. how much would she have after 8 years if she leaves it invested at 8.5% with annual compounding