Answer:
The answer would be $14 a sweater.
And S=42*3 (If * is a divide by sign)
Explanation:
Step 1. Find the equation. If $42 is total then we know to to divide that number by three getting the equation S=42*3.
Step 2. Do the math. 42 divided by 3 is 14, meaning 14 dollars per sweater.
I hope this helps! :)