Louie's used 3/5 of a can of tuna in the afternoon and 1/4 of that can in the evening at the end of the day how much of the can was left

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

Koji is installing a rectangular window in an office building. the window is 823 feet wide and 534 feet high. the formula for the area of a rectangle is a=bh. what is the area of the window? enter your answer as a mixed number in simplest form in the box. $$ ft2

Complete the solution of the equation. find the value of y when x equals to 28 x+3y=28