Solve the problem. Round money to the nearest cent, if necessary, rates to the nearest whole percent, and time to the nearest month. If the total interest paid on a loan for 18 months at 8% was $180, what was the principal? 4 O $750 O $2250 O $1500 O $1366.67 Find principal to the nearest dollar, rate to the nearest tenth of a percent, or time to the nearest day. Use banker's interest. ABF Freight Systems earned $113.33 interest in 60 days from an investment that paid 4%. Find the amount initially invested. O $2833 O $172,356 $8500 O $17,000