A circle has a diameter of 30 ft. What is its circumference? Use for π, and do not round your answer 3.14 Be sure to include the correct unit in your answer.

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.

Aand b are correctly balanced reactions. they have the same number of atoms in both sides of the reaction