The answer is 500 yearbooks. Let x be the number of yearbooks to print and sell. So, they lose $7 per each yearbook x: -7x. But, they earn $35 per each yearbook: +35x. For them to break the business even gain and loss must be equal to the investment of $14,000: 35x - 7x = 14,000. 28x = 14,000. x = 14,000/28. x = 500.
