Answer:
x - 31 [tex]\geq[/tex] 69
Tonisha has to make at least $100 in revenue
Step-by-step explanation:
Set up the inequality:
x - 31 represents her profit
Since she wants to make at least $69 a day, use [tex]\geq[/tex] 69
So, the inequality is x - 31 [tex]\geq[/tex] 69
Then, solve for x to find how much she has to sell:
x - 31 [tex]\geq[/tex] 69
x [tex]\geq[/tex] 100
So, Tonisha has to make at least $100 in revenue