Mari must sell more than 36 cups of lemonade to make profit
How to draw the number line?
The complete question is added as an attachment
From the question, we have:
Start up cost = $18
Let the amount per cup of lemonade be $0.5, and the number of cups be x
So, the total amount in sales is:
Total = 0.5 * x
Evaluate
Total = 0.5x
When Mari’s lemonade stand makes a profit, we have:
Total sales > Start up cost
This gives
0.5x > 18
Divide both sides by 0.5
x > 36
Hence, Mari must sell more than 36 cups of lemonade to make profit
See attachment for the number line
Read more about inequality at:
https://brainly.com/question/25275758
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