7th grade math review

Find the percent of change. 80 ft to 72 ft.  

A playground area is circular with a diameter of 32 feet. Find the area of the playground.

8% commission on $23,000 in sales. 

What social media site did he create?

SOLVE  2(5b + 3) - 3(b - 2) = -9

A rectangular prism has a base of 2 x 4 inches and a volume of 72 in³. What is the height?

What are the name of his helpers?

What is Mrs. DeMoss' favorite color?

What is the volume of the soda can below if the RADIUS is 2 inches and the HEIGHT is 5 inches?

Ms. P went to the store with $60.She got milk for $3 and 4 pens.She had $35. cost of each pen?

Find the volume of the cylinder with the radius of 1.5 inches and the height of 8 inches.

Find the error 8x -7(2x+1)    8x - 14x -7   6x-7

Simplify 3x + 4(x +1)

Find the volume of the rectangular prism. 

5y + 6y = 

Joe is redoing his floor with 6 in. by 14 in. The floor's area is 8,900 in2. How many tiles? 

Find the total cost of a cape that cost $150 with a 5% tax. 

What is the name of this crab from little mermaid?

Solve for x.                                               2x - 1 = 5