Answer:
y=0.8x+2.1
x= 12 miles
Step-by-step explanation:
Using the standard charge of 0.8 per mile and a fixed charge of $2.1. Let x represent the miles covered then the expression for coat at any given mile will be y=0.8x+2.1
Substituting $11.7 for y then we can find the valje of x as 11.7=0.8x+2.1
0.8x=11.7-2.1=9.6
X=9.6/0.8=12 miles
