Answer:
i need points rq thanks so much
Step-by-step explanation:
imma go waste these points now
Answer:
-5
it is smaller than 7
Step-by-step explanation:
cuz my bwain say yes
Answer:
16.75 square cm
Step-by-step explanation:

The answer is: " 9a² + 7a " .
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Note: (3a)² + 7a = (3a)*(3a) + 7a = 9a² + 7a .
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Yes you can assume they are similar because the sides that correspond with one another are half of the big triangles measurements. 16/2=8 12/2=6 etc.