The ratio of adult cats to kittens at a pet care center on Saturday was 5:3. There were 12 kittens there that day. Thursday, 26 adult cats were at the pet care center. What is the difference between the number of adult cats at the pet care center on Thursday and Saturday?

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?