48 tiles for each of 8 rows. each row has 6 white tiles . the rest are purple. how many tiles are purple?

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

In the figure below, triangle rpq is similar to triangle rts. what is the distance between p and q? a. 24 b. 42 c.50 d. 54

You just purchased two coins at a price of $670 each. because one of the coins is more collectible, you believe that its value will increase at a rate of 7.1 percent per year, while you believe the second coin will only increase at 6.5 percent per year. if you are correct, how much more will the first coin be worth in 15 years?