Question 841100
The relative distance is:
{{{ 3 - 5 + 13  = 11 }}} miles east
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The total distance is:
{{{ 3 + 5 + 13 = 21 }}} miles total
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( 40 mi/gal ) x ( 1/4 gal ) = 10 mi
There is enough gas to go 10 miles
so, there is not enough gas for the trip