You’re supposed to graph the function. So basically you’ll want to make it so that y=, and then the rest of your formula.
So in this case y=3x+9
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She is incorrect as 10% of the higher marked up price is larger than 10% of the original price.
For example: If you mark up $100 by 10% you get $110.
If you mark down $110 by 10%, you will get $99, as 10% of $110 ($11) is larger than 10% of $100 ($10).
Answer:
2 6 10
Step-by-step explanation: