What is the formula for surface area

Acourt reporter is transcribing an accident report from germany. the report states that the driver was traveling 80 kilometers per hour. how many miles per hour was the driver traveling?

Which statement best describes how to determine whether f(x) = x squared- x +8 is an even function ?

How can you find the magnitude of a vector, v = < x, y > , where the horizontal change is x and the vertical change is y?