Oksana buys a Lada for $20,000.00 and agrees to make monthly payments of $386.66 over 5 years at 6% c.m. a. Supposing Oksana misses payments 15 and 16, how much extra could she add to payment 17 to get the loan back on track? b. Calculate the total interest paid on the loan (including interest as a result of the two missed payments). c. How much extra interest is incurred as a result of the two missed payments