7. assume k is not a multiple of 7 (a) explain why (k, 7=1. (b) prove that rk-7 is (k,7)-inaccessible for isrs6. (c) what is the largest (13,7)-inaccessible positive integer and why?

What is the simplified expression for 6(2(y+x))

What is the slope simplify your answer and write it as a proper fraction, improper fraction, or integer

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.