There are 51 families in oakville who have a pool. that is 3 times as many families with a pool than in elmburg. how many families in elmburg have a pool?

If the measure of xyz is 81 what is the measure of yz

Find the balance at the end of 4 years if 1000 is deposited at the rate of

Amerchant has coffee worth $60 a pound that she wishes to mix with 50 pounds of coffee worth $90 a pound to get a mixture that she will sell for $70 a pound. how many pounds of the & 60 coffee should be used?