Write an equation to represent the following description. Seventeen more than eight times a number is −6.

Fred has a total of 62 dvd and cd. if the number of cd is three more than two times the number of dvd, how many cd does he have?

If y varies directly as x2 and y=6 when x=6, find the constant of variation.

The amount cami raised during last year’s charity walk, $45.50, is 7/10 of the amount she raised this year. which equation represents n, the number of dollars she raised this year?