Biased or Random? Michael wants to determine the amount of time that 7th graders spend studying for tests. He surveys 80 7th grade students as they get to school.

Hector and alex traded video games. alex gave hector one fourth of his video games in exchange for 6 video games. then he sold 3 video games and gave 2 video games to his brother. alex ended up with 16 video games. how many video games did alex have when he started?

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?

Find the slope of the line passing through a pair of points