Is 5.96 a rational number

Arestaurant gives out a scratch-off card to every customer. the probability that a customer will win a prize from a scratch-off card is 25%. design and conduct a simulation using random numbers to find the experimental probability that a customer will need more than 3 cards in order to win a prize. justify the model for your simulation, and conduct at least 10 trials.

The measure of one angle of an octagon is two times smaller that of the other seven angles. what is the measure of each angle?

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?