Final answer:
The amount of sugar needed per muffin is found by dividing the total amount of sugar (3/4 cup) by the number of muffins (6), which is represented by the expression (3/4) ÷ 6.
Step-by-step explanation:
To determine how much sugar is needed per muffin, you need to divide the total amount of sugar by the number of muffins. Given that 3/4 cup of sugar is needed to make six muffins, the expression you would use is:
(3/4) ÷ 6
This means you take the three quarters of a cup and divide it by the six muffins to find out how much sugar is needed for each individual muffin. So, the correct answer is A. (3/4) ÷ 6.