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15 points ! ~ see if you know the answer to both you!

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 angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles