Solve for E (look at image Below for question)

42 this is because 2.5 is half of five so half or e is 21 meaning we have to multiply it by 2

42 because 2.5 is half of 5 and I did it

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.