1. Expressions and Equations Notes Part 11

2. Flying with the wind, a plane went 348 miles per hour
Flying with the wind, a plane went 348 miles per hour. Flying into the wind, the plane only went 316 miles per hour. What is the speed of the plane in still air? What is the speed of the wind?

3. Suppose you plan to start taking a kick-boxing class
Suppose you plan to start taking a kick-boxing class. Non-members pay $4 per class and members pay a $10 fee plus an additional $2 per class. After how many classes will the cost will be the same? What is that cost?