Mary is 25 years old, and she owns her car, which she uses to drive to work. Her collision deductible is $100, and she does not have comprehensive coverageif her car's safety rating is 20, what is her annual premium? A. 1353

B.2706

C.820

D.1600

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.