Dawn Swift discovered that 20 years ago, the average tuition for one year at an Ivy League school was $12,000. Today, the average cost is $60,000. What is the growth rate in tuition cost over this 20-year period? Select one: a. 8.38% O b. 14.8% O c. 9.4% O d. 7.18% You are granted a loan or $12,000,000 to purchase a nome. Payments are to be made monthly over the next 25 years at a rate of 9%. What is the total interest amount to be paid over the life of the loan? Select one: O a. $18,541,812 O b. $15,785,389 O c. $18,211,075 O d. $17,329,844