Answer:
22
Explanation:
If in 3 hours she made 12
if we divide 12 and 3
she is making 4 every hour
she already has 12 so if you add 8 to that it will be 20
then 30 minutes she will make half the toys she makes in an hour will be 2
add 20 and 2 you get 22 and thats your answer