Answer:
$4140
Step-by-step explanation:
For each of the amounts, the final balance is ...
A = P(1 +rt)
Filling in the given numbers, we can add the final balances:
900(1 + 0.06·4) + 900(1 + 0.06·3) + 900(1 + 0.06·2) + 900(1 + 0.06·1)
= 900(4 + 0.06(4 +3 +2 +1)) = 900·4.60
= 4140
The amount withdrawn is $4140.
