Which of the following describes the number 0.5?

Find the solution of this system of equation -7x+y=-20 9x-3y=36

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?

Match the one-to-one functions with their inverse functions.