Answer:
5 weeks.
Step-by-step explanation:
If w is the number of weeks, apply algebra.
So think about what would be the total money saved, or the same thing as the Money in saving account + Money saved per week × Number of weeks
For you, this would be 135 + 12w
For your friend, 95 + 20w
So then, 135 + 12w = 95 + 20w
1) 135- 95 = 20w - 12w
2) 40 = 8x
3) X= 5 (8 times 5 is 40)
Therefore, it will take 5 weeks for you and your friend to have the same balance.