A grocery store has a shelf with half-gallon containers of milk. What type of number best represents the total number of gallon? Explain your answer.

A. Rational Number

B. Interger

C. Whole Numbers

D. Irrational Numbers

Rational numbers.

The grocery store will have a whole number of half gallons = >

number of gallons = n * [1/2], where n = ∈ N

That means that the number of gallons ∈ Z + and 0.

Then the answer is the option A. rational number.