7a^2b + 10a^2b^2 + 14a^2b^3 =
a^2b (7 + 10b + 14b^2) <==
a 10-by-10 grid means there are 100 squares and percent is out of 100 so if you have 42% then you just need to fill in 42 squares
Answer:
Sorry I cant help But I think that well I dont know but if you have any other questions i can help you with I can.
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Answer: 406
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