Iam playing a walking game with myself. on move 1, i do nothing, but on move $n$ where $2 \le n \le 25$, i take one step forward if $n$ is prime and two steps backwards if the number is composite. after all 25 moves, i stop and walk back to my original starting point. how many steps long is my walk back?

Issof claims that the scale factor is 1/2. which statement about his claim is correct

Christine wong has asked dave and mike to her move into a new apartment on sunday morning. she has asked them both, in case one of them does not show up. from past experience, christine knows that there is a 40% chance that dave will not show up and a 30% chance that mik a. what is the probability that both dave and mike will show up? (round your answer to 2 decimal places.) b. what is the probability that at least one of them will show up? c. what is the probability that neither dave nor mike will show up? (round your answer to 2 decimal places.)e will not show up. dave and mike do not know each other and their decisions can be assumed to be independent.

Consider the sequence below. 3 , 1 , 1/3 , 1/9 , select the explicit function which defines the sequence.