Answer:
-7k+21
Step-by-step explanation:
Here is my work for the problem. Hope this helps!
Rectangle on the left = 3 × 4 = 12
Rectangle in the middle = 3 × 2 = 6
Rectangle on the right = 4 × 3 = 12
Add:
12 + 6 + 12 = 30
Answer = 30
Hope this helped☺☺
Step-by-step explanation:
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