9. A bank deposit paying simple interest grew from an ini- tial sum of $1000 to a sum of $1075 in 9 months. Find the interest rate. 1. 2. 4. 3. Accumulated amount, continuous compound interest 5. 6. 7. 8. 9. 10. 11. Accumulated amount, simple interest 12. Accumulated amount, noncontinuous compound interest A = P(1+) Present value, simple interest Present value, noncontinuous compound interest Accumulated amount, continuous compound interest Effective rate, noncontinuous case Effective rate, continuous case Future value of an annuity Present value of an annuity (cash price) Amortization (payment of a loan) A = P(1+rt) Sinking fund (savings account) payment A = Pert P = A(1+rt)- P= A (1+)" P = Aert Tell = (1+)-1 Tell = e-1 S = R P=R R= mt R= [1-(1+ PL SE mit 1-(1+)" (1+) -1 -mt