The sum of the measures of the interior angles of a convex polygon is 2160°.

How many sides does the polygon have?

A. 12

B. 13

C. 14

D. 15

What is the inverse of f (x) = 5x-4

Jake wants to estimate 15.92 + 0.85. How can he use rounding to estimate the sum? What is the estimate?

There are 950 students at Hanover High School. The ratio of the number of freshmen to all students is 3:10. The ratio of the number of sophomore to all students is 1:2. What is the ratio of the number of freshman to sophomore?

What's - 3 = n + 9 for algebra

Jada and Priya are trying to solve the equation 23+x=4. Jada says, "I think we should multiply each side by 32 because that is the reciprocal of 23." Priya says, "I think we should add - 23 to each side because that is the opposite of 23.

What is the median and mean of: 7,13,10,7,16

Bryce has a rug that is 14 decimeters by 16 decimeters. Draw a sketch of Bryce's rug. Then find the area of his rug. Show your work and label the answer with the correct units.

3.14 and A cylinder has a height of 6 feet and a radius of 5 feet. What is its volume? Use A round your answer to the nearest hundredth. cubic feet

Triangle CED has side lengths 5x - 8, 3x - 4 and 13x + 3. what expression represents the perimeter of triangle CED?

Amanda's jewelry box is in the shape of a cube that has 6-inch edges. what is the voulume of Amanda's jewelry box?