You are trying to save up money for a down payment on a new car. When you first started saving, you already had $300 in your account. After 4 months of saving your account had grown to $900. If you continue to save at the same linear monthly rate, a) Write a function A(t) for the linear model for the amount in your account, where t = months since you started saving b) How long will it take you to save up the $1500 you need for the down payment? Round to the nearest whole month. months

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