Final answer:
Ally will spend $28.32 on the fabric and trim to make the aprons.
Step-by-step explanation:
To calculate how much Ally will spend on fabric and trim, we need to find the total cost of the fabric and the trim separately, and then add them together.
First, let's calculate the cost of the fabric. Ally needs 2 yards of fabric, and the fabric costs $7.79 per yard. So, the cost of the fabric is 2 yards x $7.79 per yard = $15.58.
Next, let's calculate the cost of the trim. Ally bought the entire spool for $12.74.
Now, we can add the cost of the fabric and the trim together to find the total cost. $15.58 (fabric cost) + $12.74 (trim cost) = $28.32.
Ally will spend $28.32 on the fabric and trim to make the aprons.