Mr. Ahmad's parents deposit KD 124 at the end of each year into his account for the next 13 years. What would be the amount of money accumulated in his account 13 years later, if the bank interest is 5% yearly? 5G a. (10 pts.) Write down your formulation to calculate the accumulated amount below: b. (10 pts.) What is the value of the accumulated amount? ✪ c. (10 pts.) If the bank increases the interest rate, how will the deposit be paid change to accumulate the same amount of money?