If he does three hours, its 9 strips, for four, its 12, six is 18, seven is 21, and nine is 27
The answer would be 7x+ 17
The awnser is 17.5 Your welcome.
I don’t see a number line, but whatever says that the stock had no increase or decrease is your best bet.
Explanation: we can see it does have a decrease, but the increase the next day overrides it and turns the stock addition to $0
