What does n)-2 mean ??

Tom is the deli manager at a grocery store. he needs to schedule employee to staff the deli department for no more that 260 person-hours per week. tom has one part-time employee who works 20 person-hours per week. each full-time employee works 40 person-hours per week. write and inequality to determine n, the number of full-time employees tom may schedule, so that his employees work on more than 260 person-hours per week. graph the solution set to this inequality.

Is experimental probibilty the same as the observed frequency in math? i need the answer asap!

Which answer choice is it? is it the first ,second,third or fourth giving 40 points for whoever answers correctly you