Set up a system of linear equations in two variables that models the problem. Then solve the system of linear equations. A person plans to build a cabin at the lake and wants to get bids from two contractors to determine its cost. The first contractor gives a quote of $60,000 plus $120 per square foot for the cabin. The second contractor gives a quote of $90,000 plus $90 per square foot. For how many square feet will the two contractors charge the same amount? What is that cost? W Let f represent the square feet and C represent the cost charged by contractor. (Do not include the $ symbol in your answers.) The equation C = D represents the cdst charged by the rst contractor. The equation C = D represents the cost charged by the second contractor