Austin earns both a monthly salary and a commission. His monthly salary is $3000. He earns a 5% commission on what he sells. In November, he sold $18,000 worth of product. What will Austin's total pay be for November?

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.