1. what is the product of (-6)^2 a -3 b -12 c 36 d 6 2. simplify the expression -84 ÷ 14 a -6 b 6 c 98 d -70 3. simplify the expression -8(12) a 96 b 20 c 2 d -96 4. find the quotient 20÷ 1/4 a 5 b 40 c 10 d 80

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.