Rafeal counted a total of 40 white cars and yellow cars. there were 9 times as many white cars as yellow cars. how many white cars did rafael count?

How do businesses a country's economy? a. by investing in goods and services b. by increasing the unemployment rate c. by making profits

Two cyclists 84 miles apart start riding toward each other at the same. one cycles 2 times as fast as the other. if they meet 4 hours later, what is the speed (in mi/h) of the faster cyclist?

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16