## 6.5 Solving Equations and Inequalities

### Family Tree

How many ancestors do you have as you go back in time? Students use exponential growth to see how many people they're related to throughout human history.

Topic: Expressions and Equations (EE)

### AppleCare a Day

Should you ever buy an extended warranty? Students use percents and expected value to determine whether product warranties are a good deal.

Topic: Expressions and Equations (EE), Ratios and Proportional Relationships (RP), Statistics and Probability (SP)

### Calories In, Calories Out

How many calories does a body burn? Students interpret and apply the formula for resting metabolic rate (RMR) in order to learn about how calories consumed from food, calories burned from exercise, and calories burned automatically contribute to a body's weight.

Topic: Expressions and Equations (EE), Ratios and Proportional Relationships (RP)

### Hi, BMI

What's a healthy weight? Students evaluate the Body Mass Index (BMI) formula for several celebrities, and discuss whether BMI is always a good measure of health.

Topic: Expressions and Equations (EE)