X=a
there were 120 problems.'
you got two-fifths wrong.
how many did you get right?

Do i get charged for my membership before or after the 6 months

Two lines parallel to a third line are parallel to each other. always sometimes or never

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.