The two plans cost the same at 450miles.
The cost is $118.50 when the two plans cost the same.
Working is in the photo.
Use the law of cosines:
c² = 8² + 11² - 2•8•11 cos(37°)
c² ≈ 44.4402
c ≈ 6.66634
C hope it helps .....................
Answer:
y = 1/2x - 2
Step-by-step explanation:
use formula y = mx + c
m = gradient
c = y intercept