both 6 and 7

(8 pts) 6. A couple plans to deposit $12,000 in an investment fund at an effective interest rater, with interest compounded continuously. If after 8 years the fund has grown to $75,000. Determine re as a percentage. (10 pts) 7. A debt of $65000 due in eight years from now at at an intrest rate of 5.2%, is instead to be paid off in four payments as follows (i) $8000 is paid now, (ii) $ 18000 paid in 3 years, (iii) S 25000 paid in four years, and (iv) final payment is made at the end of six years If the interest rate is compounded quarterly, what would be the final payment