Students create equations for finding the break-even points of hybrid and electric vehicles by mileage and years of ownership. They work with systems of equations to find the number of years or number of miles where the cost of these cars are the same.

# Tag: 7.SP

## At least the days are getting longer

## Powerball & MegaMillion Probability

## Veterans Day 2020

## Costume spending 2020

Use our current data on Halloween spending in America to engage your students in an analysis of the ratios and percents of population, participation, and money spent in honor of October 31st. This activity takes kids through finding parts of wholes as well as ratio, percents and proportion problems. Beware: the tasks in this activity involve some large numbers as well as some challenging fraction/ratio/proportion problems.