please complete the entire question, try and use the same format if possible

Backus Inc. makes and sells many consumer products. The firm's average contribution margin ratio is 35%. Management is considering adding a new product that will require an additional $15,000 per month of fixed expenses and will have variable expenses of $7.80 per unit Required: a. Calculate the selling price that will be required for the new product if it is to have a contribution margin ratio equal to 35% b. Calculate the number of units of the new product that would have to be sold if the new product is to increase the firm's monthly operating income by $6.000. (Do not round Intermediate calculations.) I per unit a Selling price b. Number of units