A

Conversion is quite easy to do. If you state the values as fractions and then cross-cancel the units conversion is a snap.

To Convert Company A's cars from mpg to Km per Liter:

`(20mi)/(1 gal) xx (1.6 km)/(1 mi)=(32 km)/(1 gal) xx (1 gal)/(3.79 L)~~8.44` km per Liter.

To convert Company B's cars for Km per liter, to Mpg:

`(14 km)/(1 L) xx (3.79 L)/1 gal=(53.06 km)/(1 gal) xx (1 mi)/(1.6 km)=33.1625` mpg

Either way, Company B's cars have better gas mileage.

B

I would use the X-axis to show how many miles you've traveled, and I would scale it to increments of 10 miles. The Y axis would show how much gas you have left, and scaled to increments of 1 gal. Your graph should look like this.

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