y=5, x=7 because if 3x5=15 then 15-7=8 dont report me if i do get this wrong
210- 30= 180 which is what she has left to pay after the down payment.
15x12= 180
So, if Adela pays 15 dollars a week it would take her 12 weeks to complete her layaway.
Hope this helped!
Exact Form:
√
3
Decimal Form:
1.73205080