please help me solving these questions

17) The Toronto Maple Leafs fired their head coach two years into a five-year contract. The contract guaranteed him a $20,000/week payment as his salary. If the team owners are now required to buy out the remaining term of the contract for its current market value (ie. present value ofhr's contract) at the time of his firing, what will the current settlement amount be worth? Assume that money can earn 3.5% compounded weekly. 18) A manufacturer of calculators has the following information on a new model being released in the spring. Fixed costs per month are $14200; variable costs per calculator are $5.50; selling price per calculator is $16.00; and warehouse capacity is 5000 units. Determine the following: a) How much money is the company making per calculator (if we do not factor in fixed costs)? b) What is the break-even point (in units)? c) The company wants to increase the selling price by $1. If they do, what is the new break-even point? Explain why the change in break-even units makes sense. d) What is the profit if the company sells only halftheir warehouse capacity? e) How many units does this company have to sell to profit $25,700