[size=200][b][color=#1e84cc]Problem 1[/color][/b][/size]
Explain how to find the solution set.
[size=200][b][color=#1e84cc]Problem 2[/color][/b][/size]
[size=150]People who use plan A pay 10 cents for each text sent or received. People who use plan B pay 12 dollars per month, and then pay an additional 2 cents for each text sent or received.[/size][br][br]Write an inequality to represent the fact that it is cheaper for someone to use plan A than plan B. Use [math]x[/math] to represent the number of texts they send.
[size=200][b][color=#1e84cc]Problem 3[/color][/b][/size]
[math]\displaystyle \begin{align} \text-4x+3<23 \\ \text-4x<20 \\ x< \text-5 \end{align}[/math][br][br]Describe the error that she made.
[size=200][b][color=#1e84cc]Problem 4[/color][/b][/size]
[size=150]What is the solution set of the inequality [math]\frac{x+2}{2}\ge-7-\frac{x}{2}[/math]?[/size]