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

He will have $1,664 on his 15th birthday.

Step-by-step explanation:

If he is saving $4 per week for 8 years (15-7=8), and there are 52 weeks in a year, then 8x52=416 weeks. Then 416x4=1,664. Therefore, he will have $1248 dollars by his 15th birthday.

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