Answer:
$10
Step-by-step explanation:
Each mitt was sold for $10 each.
First, add the total of the money she made off of all three mittens (23+7=30) this equation gives you the amount of money that Quinn got for all three mitts.
Then, to find the value of each mitt, take the total of all the mitts and divide it by the number of mitts (30÷3=10)
This gives you the answer that each mitt was $10