Stefan won 54 lollipops playing hoops at the county fair. At school he gave three to every student in his math class. He only has 9 remaining. How many students are in his class? show work

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.