I would appreciate a step by step explanation in solving this problem, thank you ahead of time.

Assume a fixed cost of $1,000, a variable cost of $6.25, and a selling price of $7.50. a. What is the break-even point? (Roundup your answer to the next whole number.) Break-even point units b. How many units must be sold to make a profit of $500.00? (Roundup your answer to the next whole number.) Units to be sold c. How many units must be sold to average $0.25 profit per unit? $0.50 profit per unit? $1.50 profit per unit? (Roundup your answer to the next whole number. Loss should be indicated with a minus sign.) Units to be Sold units $0.25 profit/loss per unit $0.50 profit/loss per unit $1.50 profit/loss per unit units units