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what is the answer to this ?

on his 5th birthday,paul was 42 inches tall. on his 7th birthday,he was 48 inches tall.

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1 Answer

You don't have a question part. I am assuming you want the average rate growth.

He grew 6 inches taller over the course of exactly 2 years. The average growth rate will be

(6 in.) / (2 yr.) = 3 inches per year.