A company estimates that 0.6% of their products will fail after the original warranty period but within two years of the purchase, with a replacement cost of $350. If they offer a 2 year extended warranty for $34, what is the company's expected value of each warranty sold?

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.

Apublic library wants to place 4 magazines and 9 books on each display shelf. the expression 4s+9s represents the total number of items that will be displayed on s shelves. simplify the expression

What is the answer to the question 5x+2x