It takes b minutes for sylvia's bathtub to fill with water. how many minutes will it take to fill the bathtub 3 times? write your answer as an expression.

How to do this , and can some one explain

Quadrilateral efgh was dilated with the origin as the center of dilation to create quadrilateral e'f'g'h'. the quadrilateral was dilated using a scale factor of 2.5. the lengths of the sides of quadrilateral efgh are given. what is the length of side f'g'?

Using the rise/run counting method, the slope of the line is