Answer:
500 Dollars
Explanation:
Y initial = ?
Y final = 260
X initial = 0
X final = 8
at first 5 days she left with 350 dollars and after 3 days 260. in 3 days she uses 90 dollars so that means she used 90/3 dollars per day, or 30 dollars per day.
after 5 days she had 350 dollars, if she used same amount of money per day that would mean 350 + 5 × 30 = Y initial
350 + 5 × 30 = 500
500 = Y initial
she started with 500 Dollara