An amusement park is installing a new roller coaster. the park intends to charge $5 per adult and $4 per child for each ride. it hopes to earn back more than the $650,000 cost of construction in four years. with the best of weather, the park can provide 125,000 adult rides and 50,000 child rides in one season

The length of each stair is 11 inches. what is the rise, r, for each stair? round to the nearest inch. 2 inches 7 inches 17 inches 24 inches

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.

If a || b and b | y, then ? a) x || y. b) x | a. c) a | y. d) a || y.