Hello, please consider the following.

Let me know if you need further explanation.
Thank you
$30.50-$17.79 is $12.71. I hope that helps you :)
Answer:
Step-by-step explanation:
Answer:
40 yd^2
Step-by-step explanation:
Add the square at the bottom to make one large rectangle. Subtract the square not included from that area to get the figure shown (see attachment).