Find the solutions to the equation below. check all that apply. x2-4=0a. x = -1 b. x = 4 c. x = 2 d. x = 1 e. x = -4 f. x = -2

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.