Joe saves most of his allowance every week since his 7birthday. If joe saves $4 per week, how much money would he have saved on his 15 birthday?

multiply

Step-by-step explanation:

7x 15 = 105

105x4=420

then add 105+420 = 44,100

1664 Hope this is right

Step-by-step explanation:

You first need to find how many weeks is in a year.

Then multiply how many weeks that are in a year 52 by amount of money per week 4.

You get 208

Before the last step you need to subtract 15-7=8

Multiply 208 times 8 and that's your answer