Mr. Doe can buy a car for $50,000 cash or payments of $35,000 down and $25,000 in 5 years. If he can earn interest at 10% a year compounded weekly, which plan is better? (PLEASE EXPLAIN THOROUGHY INCLUDE WHICH FORMULAS USED AND HOW YOU GOT EVERY NUMBER THAT YOU PLUGGED IN PLEASE) FOR EXAMPLE EXPLAIN HOW YOU GET THE number of compounding periods