Write the equation for the inverse of the function y=cos2x

Ineed if you could explain and give me the answer you! this needs done

Someone answer asap for ! the following statements are true about the coins calvin and sasha have collected. * calvin and sasha has the same amount of money. * calvin has only quarters. * sasha has dimes, nickels, and pennies * calvin has the same number of quarters as sasha has dimes. * sasha has $1.95 in coins that are not dimes. exactly how many quarters does calvin have?

The function below show how much jayna and hannah charge for babysitting. which statement best compares the two plants?