At a used car sales lot, a person has $2000 for a down payment and can afford $150 per week. The business offers a loan at 8%/a compounded weekly. a. What is the most this person can spend on the car, if the loan must be for 2 years? b. Explain which would have a greater effect on the total amount of interest: i. Increasing the down payment by $500. ii. Increasing the weekly payments by $10