Answer:
160 miles
Step-by-step explanation:
200 * 0.8 is 160
The top left is the correct answer, because the sides are parallel.
Hope this helps!
X = the number of months the tire was used
y = the thickness of the tire tread
y = -(3/7)x + 20
Substitute x for 20 (the number of months the tire was used) and solve for y.
The next question: Substitute x for 49 (the number of months the tire was used) and solve for y.