Alex bought some chips and pop for his class party. He bought a total of 32 items. Each bag of chips cost $0.75 and each bottle of pop cost $2.19. He spent a total of $39.84. How many bags of chips and how many bottles of pop did he buy?

Margie is practicing for an upcoming tennis tournament. her first serve is good 20 out of 30 times on average. margie wants to know the estimated probability that her first serve will be good at least four of the next six times she serves. how could she design a simulation for this scenario?