Anew post-surgical treatment is being compared with a standard treatment. seven subjects receive the new treatment, while seven others (the controls) receive the standard treatment. the recovery times, in days, are given below. treatment: 12 13 15 19 20 21 22 control: 18 23 24 30 32 35 39

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.

6xy and -16xy000000000