Points G and H are located at (15,7) and (-9,7) on the coordinate plane.
What is the distance between the two points?
A. 6 units
B. 8 units
C. 14 units
D. 24 units

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.