Selling price and amount spent on Advertising were entered into a multiple regression to determine what affects lcd tv sales. the correct null and alternative hypotheses for testing the regression coefficient price is:

Is there an x intercept in the equation 60*1.15^x

Arational number that is equivalent to -20/4?

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'?