a. Write a rule for the amount of money in Francis’s account. Let ‘x’ represent the number of days and ‘y’ represent the number of dollars in the account.
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HINT: Use y = mx + b. How much money did Francis have to start with? By what amount was his account growing each day? Write your rule on the line below.
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b. When will Francis have more than $1000 in his account?
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HINT: Use the rule you found in part (a).
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