Please help Does this equation have one solution, no solution, or infinitely many solutions? 20x-60/2=10(2x+4)

Which of the following is a justification used while proving the similarity of triangles lom and mon

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.

Could someone with number 1 and 2