Ineed baad really bad someone simplify this 4.8 - 0.2 × 11.5

An astronaut drops a rock into a crater on the moon. the distance, d(t), in meters, the rock travels after t seconds can be modeled by the function d(t)0.82. what is the average speed, in meters per second, of the rock between 5 and 10 seconds after it was dropped?

Find and simplify an expression for the area of five rows of x squares with side lengths of x centimeters.

Solve the equation - 2(m -30) = -6m a-15 b-13 c-8 d8