Answer:

Step-by-step explanation:
Considering John's height as
, saying that his height is at least 5 feet tall, it implies that the lowest height for John is 
So, inequality is

Answer:
280 miles
Step-by-step explanation:
Divide 420 by 12 to find the unit rate of miles per gallon.
You get 35 miles per gallon
To find how many miles he can travel for 8 gallons, multiply 35 by 8.
You get 280 miles.