You go to a party which has 1000 guests (including you). a. what is the probability that exactly one other guest has the same birthday as you? b. what is the probability that at least two guest have the same birthday as you?

Jabari is power washing houses for a summer job. for every job, he charges an initial fee plus $30 for each hour of work. his total fee for a 4 -hour job, for instance, is $170 . jabari's total fee,f, for a single job is a function of the number,t, of hours it takes him to complete the job. write the function's formula.