Please help me with these 2 questions

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.

Ihave trouble finding the nth term of a linear sequence

Gh bisects fgi. find the measure of hgi •15° •21° •10° •8°