2 people, ryan and best friend
if split evenly, they divided it by 2
as a result, each go 15
that means moneyfound/2=15
multiply both sides by 2
moneyfound=15*2=30
they found $30
The third one
This graph is the only one that shows the correct slops with the correct y intercepts (-3 and 3)
5/6 = 5 ÷ 6 = 0.8333
8/9 = 8 ÷ 9 = 0.8888
so 8/9 is bigger.
hope this helped, God bless!