Answer:
The maximum number of container is 4.
Explanation:
Consider the provided information.
The cost of a gallon of orange juice is $3.50 what is the maximum number of contained you can buy for $15.
Let the number of container is x.
The cost of each gallon is $3.50.
So for x gallons you need to pay $3.50x
But the maximum money you can spend is $15.
Thus the required inequality is:

Now solve the inequality as shown.
Divide both the sides by 3.5


Hence the maximum number of container is 4.