Final answer:
The correct equation to represent Suzy's gym membership cost is A. m = 12 + 2c, which shows the total monthly membership cost as a sum of the fixed monthly fee and the cost per exercise class.
Step-by-step explanation:
For Suzy's gym membership, the total amount of her membership for one month can be modeled by the linear equation m = 12 + 2c. Here, m represents the total monthly membership cost, 12 represents the fixed monthly fee, and 2c represents the cost for each group exercise class attended, where c is the number of classes. To solve the equation for c, you need to manipulate the equation algebraically.
To find c, you would subtract 12 from both sides of the equation m = 12 + 2c to get m - 12 = 2c, and then divide both sides by 2, resulting in (m - 12) / 2 = c.
The correct equation to represent the situation is A. m = 12 + 2c.