1. Sherrys age is nine less than six times Fred's age. Write an equation and find Sherrys age if Fred is ten years old. 2. A bicycle was originally priced at $102 and is on sale for 30% off. What is the discounted price?

Solve the given system of equations. 2y= -x+9 , 3x-6= -15

Can someone me with this? i’m not sure what to put for my equations.

Cherie works in retail and her weekly salary includes commission for the amount she sells. the equation s=400+0.15c models the relation between her weekly salary, s, in dollars and the amount of her sales, c, in dollars. interpret the slope of the equation.