During the summer, Juan mows the field behind his house. Mowing improves the view for Juan and his neighbor. Juan’s marginal benefit of mowing is 30 − m, where m is the number of minutes Juan spends mowing. His neighbor’s benefit is 40 − 2m. The marginal cost of mowing is 10. What is the efficient level of provision of mowing services?

Last year ann arbor corp had $155,000 of assets, $305,000 of sales, $20,000 of net income, and a debt-to-total-assets ratio of 37.5%. the new cfo believes a new computer program will enable it to reduce costs and thus raise net income to $33,000. assets, sales, and the debt ratio would not be affected. by how much would the cost reduction improve the roe? a. 11.51%b. 12.11%c. 12.75%d. 13.42%e. 14.09%