21 is 70% of what number?
what is 20% of 90
in florida, sales tax is 6% of the total bill amount. how much sales tax would be charged in florida for a bill totaling $110?

It takes a total of 6 hours to fill up an inground backyard pool using a standard house. a function can represent this situation to represent the amount of water in the pool until it is full a function of time the hose is running. determine the domain for the function

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

How does reflecting or rotating a figure change the interior angles of the figure?