Mike can be paid in one of two ways based on the amount of merchandise he sells:

Plan A: A salary of $\$1{,}000.00$ per month, plus a commission of $11\%$ of sales, OR
Plan B: A salary of $\$1{,}200.00$ per month, plus a commission of $13\%$ of sales in excess of $\$8{,}000.00$.

For what amount of monthly sales is plan A better than plan B if we can assume that Mike's sales are always more than $\$8{,}000.00$? Write your answer an an inequality involving $x$, where $x$ represents the total monthly sales.

Answer:
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