Leon is building a square picture frame. The side of the frame is 345 millimeters long. If a meter of wood costs 7$, how much will the wood he needs cost?

Rai compares two cable plans from different companies. which equation gives the correct value of mm, the number of months for which plans a and b cost the same?

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.

The function models the number of accidents per 50 million miles driven as a function