Use the appropriate compound interest formula to compute the balance in the account after the stated period of time $15,000 is invested for 10 years with an APR of 6% and quarterly compounding, The balance in the account after 10 years is $ (Round to the nearest cent as needed.) Suppose the current cost of gasoline is $3.22 per gallon Find the current price index number, using the 1975 price of 56.7 cents as the reference value The current price index number is (Round to one decimal place as needed.)