Mari must sell more than 36 cups of lemonade to make profit
<h3>How to draw the number line?</h3>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:
#SPJ1
