Question: Real estate agent found significant relationship among number of acres on farm (x sub 1), number of rooms in farmhouses (x sub 2), and selling price in ten thousands (y) of farms in specific area. Regression equations is y' = 44.9-0.0266 x sub 1 + 7.56 x sub 2. Predict selling price of farm that has 500 acres and farmhouse with 8 rooms.