Answer: 4/2
Step-by-step explanation: Rise over run. From point S to R it goes up 4 and over 2.
F=m+25
m+f=139, using f from above we have:
m+(m+25)=139
2m+25=139
2m=114
m=57, and since f=m+25
f=82
So there are 57 males and 82 females.
725/25 = 29
The driver will have to refill the gas tank 29 times during the 725 miles trip.
I hope this helped you! c: