HELP! plz I can't find the aswer

In trapezoid klmn, kj=19.2 and jm=22.5. identify ln.

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 sum of two numbers is 12 and their difference is 18 what are the two numbers