If 3^x=5^y=75^z, show that z=xy / (x+y).

Factor to find the zeros of the function defined by the quadratic expression. 5x2 + 25x + 30

What do you notice about the sign of the product of two negative integers

There are d boys in the class. This is two more than four times the number of girls (X). How many girls are there in the class?

15/55 in simplest form

The product of 8/15, 6/5, and 1/3 is

State whether the data are best described as a population or a sample. To estimate size of trout in a lake, an angler records the weight of 11 trout he catches over a weekend.

A recipe calls for 2 1/2 cups of flour to make 2 dozen cookies. How many cups of flour would be required to bake 15 dozen cookies?

If the sum of the interior angles of a regular n-gon is 900 degrees, then n=what?

After putting 5 gallons of gas into your car, the tank was full. If the tank holds 13 gallons, how much gas was in it before you filled it up?

Amber has 500 shopkins and she gives 150 to her cousin Zairis. How many does Amber have Now.