Mr. Gomez has two kinds of fruit. The ratio of apples to oranges is 2:5. If there are 10 apples, how many pieces of fruit are in his basket?

The variable z is directly proportional to x, and inversely proportional to y. when x is 4 and y is 13, z has the value 1.2307692307692. what is the value of z when x= 9, and y= 20

What kind of bond pays interest which is exempt from tax?

What is the similarity ratio of a cube with volume 729m^3 to a cube with volume 3375 m^3