please answer all parts

Colt Company produces two skateboard models. Machine time per unit for Hero is two hours and for Flip is one hour. The machine's capacity is 1,600 hours per year. Colt can sell up to 500 units of Hero and 900 units of Flip per year. Selling prices and variable costs follow. Required: (a) Compute the contribution margin per machine hour for each product. (Use cells A2 to C13 from the given information to complete this question. Negative amounts amounts to be deducted should be input and displayed as negative values.) Required: (a) Compute the contribution margin per machine hour for each product. (Use cells A2 to C13 from the given information to complete this question. Negative amounts or amounts to be deducted should be input and displayed as negative values.)