Answer:
Step-by-step explanation:
I think x=-2
y=55x
given y=385
x=gallons of gas = 385/55 = 7 gallons
inverse function
change x to y and y to x
x=55y
y=x/55
inverse function is x/55
a.
by elimanation,cimparison or substitution you wull get the value of x=-60/17 and y=6/17