*Explain a real-world problem that you used math to solve. What mathematical expressions or equations did you use in your problem solving? Define your variables and explain your expression. After you've provided one worked out example, include a similar problem for your classmates to work.
*

Crystal - Holy cow! It's everywhere!

What level of math are we talking?

Inequalities: speed limits or height requirements for a rollercoaster

System of equations: Redbox charges $1.20 per night per DVD. Redbox instant offers unlimited streaming and 4 one-night rental credits for $7.99. Which is the better option? Why?

I hope this helps. If you need something more specific, let me know!

## Comments

Crystal, the answer Justin gave you is a good one. This is not a homework center where people do your homework for you. You are supposed to use this to get ideas, clarify concepts, etc. Use the ideas Justin gave you and write them up yourself.