Step-by-step explanation:
If she has $200 dollars in savings that is going toward the iPhone 11, she would need $649 more.
So, when working at Subway having $12.50 per hour, she would need to work 52 hours. As 12.50 x 52 = 650.
So she would need to work 2 and 1/5 days.
200 dollars in savings plus the 52 hours she worked equaling 650 dollars
(200 + 650)
Equals $850, enough to buy the iPhone 11.