Zane bought the following items during a recent shopping trip: two shirts for $26 each three t-shirts for $19.25 each one pair of jeans for $68.50 how much did he spend?

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?