There are 15 people to choose from and 4 places to put them in. how many of the groups include bob? (this is probability. i made up the problem because i don’t know how to do this and i have a test 4th hour! )

Segment xy is dilated through point m with a scale factor of 2. which segment shows the correct result of the dilation

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.

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?