The tank of a car holds 13 gallons. These gasoline gauge shows the tank is 1/3 full. How much gas is still in the tank? Give your answer as a whole number or as a mixed fraction reduced in lowest terms.

is this a multiple choice question?

if so it's a and c

the graph in the attached figure

step-by-step explanation:

we have

using a graphing tool

the graph in the attached figure

the roots are ( x-intercepts) x=-0.5,x=1,x=3

the y-intercept is the point (0,3)