Question

Tonie started receiving weekly pocket money of $5 from her mathematical father on her

9th birthday. The amount increases by 10 cents every week. How much will she receive
on the week of her 15th birthday?

Answer 1

It has to be 5+10x15

Answer 2

5+10x = 15 (I don't know in what format its supposed to be, its been a while now...But here you go)

Explanation: