Evaluate the expression if x = 3, y = 4 and z = 5. 6y - 2xy

On a string instrument, the length of a string varies inversely as the frequency of its vibrations. an 11-inch string has a frequency of 400 cylces per second. find the frequency of a 10-icnch string.

The bake stars picked 907 apples last weekend at a local orchard they made caramel apples and sold them in the bakery in trays of 6

Which expression is equivalent to -5(3x - 6/7)