Managerial accounting chapter 6. Thank you

Biscayne's Rent A Ride rents two models of automobiles: the standard and the Information follows: Biscayne's total fixed cost is $17,116 per month. Required: Determine the contribution margin per rental day and contribution margin ratio for each model that Biscayne's offers. Which model would Biscayne's prefer to rent? Deluxe Model Standard Model Both Calculate Biscayne's break-even point if the product mix in 50/50 Calculate the break-even point if Biscayne's product mix changes so that the standard model is rented 75 percent of the time and the model is rented for only 25 percent