please help

Best Eastern Motel is a regional motel chain. Its rooms rent for $120 per night. The cost is $60 a room with fixed costs of $480,000. a) Determine the revenue R from renting x rooms b) Determine the cost C of renting x rooms c) Determine the profit P of renting x rooms d) Determine the break-even point and Comment e) Graph R and C together and label the break-even point. Label the fixed costs on the graph. Comment g) Determine the lower bound of the number of rooms rented that correspond to making a profit h) Graph P and label its x-intercept Comment on the relationship between the break-even point and the x intercept )If the cost can be changed such that it costs S$40 per room with fixed costs of $480,000, graph R and C together again and label the new break-even point. k) Determine whether it would be advantageous to change over to the new cost function or not? Comment