This is a question on mean and mediator thats due in 15min

Which expression will have the same sum as 3_8 + 1/4?

To solve the system of equations below, grace isolated the variable y in the first equation and then substituted into the second equation. what was the resulting equation? 3y=12x x^2/4+y^2/9=1

An 18% discount on a watch saved a shopper $72. find the price of the watch before the discount