Solve these problems by using a proportion. Show your work in the space below. Then check your answers using the Gizmo. (Note: The last one cannot be modeled in the Gizmo.)
A. Original cost = $15
Selling price = $45
Percent of Markup = ?

B. Original cost = $64
Selling price = $96
Percent of Markup = ?

Solve these problems by using a proportion Show your work in the space below Then check your answers using the Gizmo Note The last one cannot be modeled in the class=