Find the area of the circle with the given circumference C. Use 3.14 for π. Round to the nearest tenth after each step in your calculation.

C = 25.1 ft

The area of the circle is about ft2.

When rates are expressed as a quantity of 1, such as 2 feet per second or 5 miles per hour, they are called unit rates. if you have a multiple-unit rate such as 120 students for every 3 buses, and want to find the single-unit rate, write a ratio equal to the multiple-unit rate with 1 as the second term.

Set up a system of equations