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!