Answer:
6 weeks
Step-by-step explanation:
Total savings= $325
For every week, his total savings decrease by $28.
Let's form an expression for the amount of money left in his account after w weeks.
325 -28w= 157
28w= 325 -157
28w= 168
Divide by 28 on both sides:
w= 168 ÷28
w= 6
Thus, there are 6 weeks until he has $157.
