Apool service charges $40 per year for chemicals plus $70 per month for pool care. a second pool service's charges are shown in the table below. number of months (x): 2, 3, 6, 8. total charge (y): $190, $255, $450, $580. after how many months have the two services charged the same amount?

Brady has a 20 year fixed rate mortgage for $215,500 with monthly payments of 1,305.89.the annual interest rate is 4%. what is the total cost of the principal and interest for this loan rounded to the nearest dollar

What is the sum of these mixed numbers 2 1/8 + 4 3/8

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.