Mark earns either a weekly salary of $875 OR commission of 4.75% on his total sales. His sales for this pay period is $15, 880. What is Mark’s gross pay?

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.