Answer:
4 minutes
Step-by-step explanation:
looks at the 8 gallon line and follow it over to the corresponding minute line
2 5/8 divided by 3
(2*8)+5/8 divided by 3
16+5/8 divided by 3
(3*7/2^3)(1/3)
3*7/2^3*3
7/2^3
7/8
each friend would get 7/8
The other factor is eight because 9 multiplied by eight is 72 and a negative times a positive is a negative