Final answer:
The new admission fee for the zoo can be represented as 1.5f.
Step-by-step explanation:
The expression f + (0.50 x f) represents the new admission fee for the zoo, where f represents last year's fee. To find another way Emma could have represented the new admission fee, we can simplify the expression. Since 0.50 is equivalent to 1/2, the expression can be written as f + (1/2 x f). We can simplify further by finding a common denominator, which is 2. So the expression becomes (2f + f) / 2, which is equal to 3f / 2. Therefore, another way Emma could have represented the new admission fee is 1.5f, which is option A.