Answer:
Option (B) 276.75
Step-by-step explanation:
Distance covered by Sara in 3.2 gallons of gas is 72 miles.
So, distance covered by Sara in 1 gallon of gas is [tex]\frac{72}{3.2}[/tex] miles
Now, we need to find the total distance covered by Sara in 12.3 gallons of gas, to find we need to multiply 12.3 and the distance covered in 1 gallon.
So, distance covered in 12.3 gallons of gas
[tex]=\frac{72}{3.2}\times 12.3[/tex]
[tex]=\frac{720}{32}\times \frac{123}{10}[/tex]
[tex]=\frac{72\times 123}{32}[/tex]
[tex]=276.75[/tex] gallons
Hence, option (B) is correct.
