D Question 8 6 pts You are planning to buy a truck for your shipping business using your bank loan which will cost an effective interest rate of 6 percent per year and credit card that charges an effective interest of 15 percent per year. The final sale price of this truck is $19000 and the federal tax rate for your business is 24 percent. If you finance your truck using $15000 bank loan and $4000 credit card loan, what is the composite cost of your truck purchase? O 5.4 % 06.6% 5.7 % O 6.% 5.1 %