Afrozen dinner at a grocery store is purchased for $2.20 wholesale and is marked up by 40 percent. a customer wants to buy four frozen dinners. how much will the customer pay, including paying 9 percent sales tax? round your answer to the nearest cent. 

First, we must mark up the wholesale price by 40%. Represented as a decimal, 40% is equivalent to 0.4. Since we are trying to find a marked up price which is equal to the price at wholesale plus 40% of the price at wholesale, we can say that our new price is:

Now, we want to find the price of 4 of these frozen dinners. So, we multiply our value by 4:

Finally, we want to find this price plus 9% of this price for sales tax. Our equation is similar to the one in the first step:

Our answer would be .

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step-by-step explanation: