Hello there! I really need help with these two problems, your help is greatly appreciated! Thanks in advance!

Problem 7 41-A used car dealer advertises financing at 4% interest over 3 years with monthly payments. You must pay a processing fee of S500 at signing. The car you like costs $9000. (a) What is your effective annual interest rate? (b) You believe that the dealer would accept $8200 if you paid cash. What effective annual interest rate would be paying if you financed with the dealer? Analysis Problem 7-60- One aspect of obtaining a college education is the prospect of improved future earnings in comparison to non-college graduates. Sharon Shay estimates that a college education has a $28,000 equivalent cost at non-college graduates. Sharon Shay estimates that a college education has a S28,000 equivalent cost at graduation She believes the benefits of her education will occur throughout 40 ycars of employment. She thinks that first 10 years out of college, her income will be higher than that of a non-college graduate by $3000 per year. During the subsequent 10 years, she projects an annual income that 5 00, is $6000 per year higher. During the last 20 years of employment, she estimates an annual salary that is $12,000 above the level of the non-college graduate. If her estimates 0 during the $12.000 $6.000 n 10 n-10 are correct, what rate of return will she receive as a result of her investment in a college education? Analvsis