Answer:
The answer is one solution because the graphs are together in one specific point.
This is the answers:
20: 6.9/7
21: 6.36/6
22: 6.24/6
23: 9.1/9
24: 4.6/5
25: 5.8/6
26: 9.3/9
27: 4.12/5
How is it possible to know how much he started with? Or is it not asking for an exact amount?
5x>/ 45
at least means it can be 45 and up
So it becomes greater than or equal to