Write an equivalent expression for 55+15n.

8litres of paint can cover 129.6 m². how much paint is required to paint an area of 243m²?

The volume of a rectangular prism is found by multiplying the length, width, and height of the prism. a rectangular prism has a width of 5x^2units, a length of 7x^3 units and a height of 2x^4 units. which is the volume of the prism in terms of x?

Find the scale factor and ratio of perimeters for a pair of similar trapezoids with areas 49 cm squared and 36 cm squared.