How do you figure out the base of a rectangle prism

Find and simplify the difference of the golden ratio and its multiplicative inverse

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.

3x + 4y = 5 x- 3y = -7 solve by substitution