If 2005 sales was 6,000,000 and 2001 sales was 2,000,000 what is the percent increase

Change negative exponents to positive. then solve. round to four decimal places

You have 37 coins that are nickels, dimes, and pennies. the total value of the coins is $1.55. there are twice as many pennies as dimes. find the number of each type of coin in the bank.

Your company will replace the asphalt roofs on all the buildings at the factory complex shown below. the buildings have flat roofs. you charge according to the total roof area. what is this area, in square yards?