Zach's chemistry textbook weighs 2/3 of a pound and his geometry textbook weighs 1/3 of a pound. how much more does the chemistry textbook weigh than the geometry textbook?

Anita has a success rate of 80% on free throws in basketball. she wants to know the estimated probability that she can make exactly four of five free throws in her next game. how can she simulate this scenario? categorize each simulation of this scenario as correct or incorrect.