# Inequality describing problem

Anonymous

Question description

At Raina's auto shop, it takes her 9 minutes to do an oil change and 15 minutes to do a tire change. Let x be the number of oil changes she does. Let y be the number of tire changes she does. Using the values and variables given, write an inequality describing how many oil changes and tire changes Raina can do in less than 3 hours (180 minutes).

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