Please you must show all your work ( all your calculations). if work not shown, no credit will be earned. Thanks

T-Shirts Incorporated Sell price pert-shirt =$12 Variable cost per t-shirt =$5 Total fixed costs =$700 a. What is the break-even point? b. How many t-shirts must be sold to earn a pretax income of $1,000 ? c. WHAT IF we increased the sell price to $13 - what is the break-even point? d. At a $13 sell price, how many t-shirts must be sold to earn a pretax income of $1,000 ? e. WHAT IF fixed costs increased to $800 (and a $13 sell price) - how many t-shirts must be sold to earn a pretax income of $1,000