Answer: Part 1: X*0.8 + 4 < 20
Part 2: X<15
Explanation:
PArt 1: Here, X represents the number of miles you can go and the inequality represents the total cost of the Uber ride, which is the cost per mile (0.8*X) plus the initial cost (4) is less than 20 dollars.
Part 2: Here, X represents the number of miles you can go and the inequality represents the total cost of the Uber ride. In this case, the inequality shows that the number of miles you can go is less than 15 miles, as this is the maximum number of miles you can travel and still spend less than $20.