Without using a calculator find the answers to the following.
(5+2) x 6-6

The answer is 0 because six minus six is zero so everything that is multiplied by zero is zero

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.