Let be "m" the number of muffins Fernando sells and "c" the number of cupcakes Fernando sells.
According to the information given in the exercise, Fernando sells a total of 84 items on Sunday. This can be represented with this equation:
You know that Fernando makes a total of $208. Then, knowing the price of each cupcake and each muffin, you can set up the following equation:
That means that the sum of "m" muffins multiplied by $2.00 and "c" cupcakes multiplied by $3.00, gives a total of $208.
Therefore, the answer is: Option B and Option D.