Walter, Geraldine, and Tonya are participating in a car wash. Walter can wash 5 cars in 2 hours. Geraldine can wash 7 cars in 3 hours.
Tonya washes cars according to the table shown. Complete the
table. Then compare the car-washing rates of the three friends.
Assume that all the cars are the same size.

Gretchen is setting up for a banquet. she has 300 chairs and needs to distribute them evenly among t tables. how many chairs should she put at each table? write your answer as an expression.

What situation is an example of an observational study

Mozart lenses inc. recently introduced seelites, a thinner lens for eyelasses. of a sample of 800 eyeglass wearers, 246 said they would purchases their next pair of eyeglasses with the new lenses. lenses inc. estimates that the number of people who purchase eyeglasses in a year is 1,700,000. most eyeglasses wearer buy one new pair of eyeglasses a year. what is the annual sales potential for the new lenses.