a store has a sale where all shirts are sold at a discount of 20% if the regular price of the shirts is $20, how may shirts could be bought at the sale price if a shopper spents $240

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.

There is no graph to go along with this