19. Alexis purchased a desk and office chair for his home office. The combined price of the items was $1888. He finances the purchase for 24 payments of $86.69. a. Find the total paid for the desk and chair b. Find the amount of interest paid for the loan c. Find the APR of the loan 20. Patrick buys a guitar and amplifier that have a combined cost of $3999. If he finances the purchase for 36 months at 5.5% interest. a. Find the finance charge for the loan b. Find the monthly payment for the loan