Evaluate: 2 x 30 - 24 divid 3 A.4 B.8 C.12 D.52 please help it would mean a lot <3

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.