Sandy bought a soft drink for 3 dollars and 6 candy bars. bars. she spent a total of 21 dollars. how much did each candy bar cost?

The area of a rectangle is 10 cm^2. one side of the rectangle is x cm. express the perimeter of the rectangle in terms of x and show that this rectangle cannot have a perimeter of 12 cm. the perimeter of the rectangle in terms of x is __ cm

Someone which statements are true? check all that apply.

Vertical angles must check all that apply