∠F and ∠G are complementary. The measure of ∠F is four times the measure of ∠G. What is the measure of each angle?

Solve for x and y: 217x + 131y = 913; 131x + 217y = 827

Joe has a rectangular chicken coop. the length of the coop is 4 feet less than twice the width. the area of the chicken coop is 510 square feet. what is the length of the chicken coup?

Extra points! find the missing dimension! need asap