Final answer:
The standard portion cost for one brownie is found by dividing the total cost of $7.50 by the number of brownies, which is 50. The cost is $0.15 per brownie, so the correct answer is A) $0.15 per brownie.
Step-by-step explanation:
To determine the standard portion cost for one brownie, we'll divide the total cost of the fudge brownie recipe by the number of brownies yielded. The total cost is $7.50, and the recipe yields 50 brownies.
Standard portion cost per brownie = Total cost ÷ Number of brownies
Standard portion cost per brownie = $7.50 ÷ 50
Standard portion cost per brownie = $0.15 per brownie
Therefore, the correct answer is A) $0.15 per brownie.