Problem 1 Kevin was a professional classical guitar player that started a small shop to make and sell Spanish guitars. The guitars sell for $900, and the fixed monthly operating costs are as follows: Kevin's accountant told him about contribution margin ratios, and Kevin understood clearly that for every dollar of sales, $0.65 went to cover his fixed costs, and anything above that point was profit. Kevin wishes to earn $4000 of operating profit each month, Calculate the number of guitars Kevin will need to sell to achieve the target profit. (Round your answer up to the nearest whole guitar.) Problem 2 Petra Manufacturing produces flooring material. The monthly fixed costs are $10,000 per month. The unit sales price is $75, and variable cost per unit is $35. Petra wishes to earr. an operating income of $25,000. Using the contribution margin ratio, calculate the total sales revenue that is needed. (Round intermediate calculations to five decimal places.)