An 80 pound statue is made up of tin and gold in a weight ratio of 7 : 3 (Tin: gold). How many pounds of gold are in the statue?

The ratio of men to women working for a company is 4 to 5 . if there are 90 women working for the company, what is the total number of employees?

What is the solution of the systems of equations? y=2/3x+3 x=-2

Two customers went to a post office. first customer paid $12 for 14 and 5 envelopes the second paid 24.80 for 10 postcards and 15 envelopes. what is cost of each envelope?