250 in the account
3%x7=21%
0.21 times 250 = 52.5
250 + 52.5 = 302.5
The answer is (3) 4896.
This number comes from multiplying 18 x 17 x 16
This is because any of the 18 students could be picked as a leader. Then, any of the remaining 17 students could be picked as a recorder. Then, any of the remaining 16 students could be picked as a timekeeper. Therefore, you multiply 18 by 17 by 16 to get 4896 combinations.
