John makes a deposit of Rs 40 000 in a bank which pays interest end of each year. The rate of interest is 15% per annum. Calculated the interest for the first year and second year.

Asales representative from a local radio station is trying to convince the owner of a small fitness club to advertise on her station. the representative says that if the owner begins advertising on the station today, the club's total number of members will grow exponentially each month. she uses the given expression to model the number of club members, in hundreds, after advertising for t months.