A circle has diameter of 8 feet. What is the circumference? (Round to the nearest tenth if necessary.)

Haley buys 9 pounds of apples for $3. how many pounds of apples can she buy for $1?

Atheater wants to build movable steps that they can use to go on and off the stage. they want the steps to have enough space inside so they can also be used to store props. how much space is inside the steps?

Solve the formula ax+ by = c for x.