HELP! Will give branliest!!!

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Louis wants to carpet the rectangular floor of his basement the basement has an area of 864 square feet the width of the basement is 2/3 its length what is the length of lewis's basement

Write an inequality for this description. - one fourth of the opposite of the difference of five and a number is less than twenty.