If your grandparents started an account that does not gain interest for you when you were ten with $100 in it. Then when you were fifteen it had $1925. When you were twenty it had $3,750. Demonstrate how much your grandparents are putting in the account

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Answer:

each year they are adding £31.25 to the bank account as £31.25 =£375 and times by 5 is £1875 but i did not include the $100 at the beginning

Explanation: