Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s).

Answer:
85-4x<40
12 cars
Step-by-step explanation:
85-4x<40
Solve for x.
-4x<-45
x<11.25
If he build 11 cars, the amount of tires would be over 40, so if he builds 12 cars, it will be below 40.