Note: Annual means once a year, and semiannual means twice a year. Lan pays a semiannual premium of $ 6 5 0 6 5 0
Note: Annual means once a year, and semiannual means twice a year. Lan pays a semiannual premium of $ for automobile insurance, a monthly premium of $ for health insurance, and an annual premium of $ for life insurance. What is the average monthly expense?