Whats the numerator for the following rational expression x/y+7/y=?
i really need help fast

Find the total area for the regular pyramid ( follow the answer set up in the picture)

Mr switzer needs to buy new 1-foot tiles to cover his bathroom floor. the floor is 12 feet long and 8 feet wide. each square foot of tile will cost $1.79. in dollars what will be the total cost of the tiles he needs to buy.

Which expression is equivalent to -5(3x - 6/7)