Answer: $18.
Explanation:
Step 1. To find out how much money Chad makes from each cup of lemonade divide 4 into 12.
12/4=3. So now we know Chad makes $3 per cup of lemonade.
Step 2. Now that we know he makes $3 per cup and we know he sold 6 cups we need to multiply $3 by 6.
3*6=18. Now, we know he made $18 dollars total.
Hope this helps!