Solve with steps (ASAP)

A painting contractor is trying to estimate the cost function for painting jobs. He has the following information: House 2 3 4 5 Square Feet (X) 2,600 4,100 2,800 2,850 4,200 2,700 2,375 2,450 2,200 3,700 Cost (Y). $3,300 5,700 3,100 3,150 4,700 3,250 2,800 2,600 2,700 4,100 7 8 9 10 Using the high-low method, calculate the variable cost per square foot and the fixed cost