The number of students in a chess club decreased from 20 to 11. What is the percent decrease? Round your answer to the nearest percent.

What is the result of converting 60 ounces to pounds remember there are 16 ounces in a pound

The volume of gas a balloon can hold varies directly as the cube of its radius. imagine a balloon with a radius of 3 inches can hold 81 cubic inches of gas. how many cubic inches of gas must be released to reduce the radius down to 2 inches?

Billy plotted −3 4 and −1 4 on a number line to determine that −3 4 is smaller than −1 4 .is he correct? explain why or why not