Different groups of 50 graduates of an engineering school were asked the
starting annual salary for their first engineering job after graduation, and the
sampling variability was low. if the average salary of one of the groups was
$65,000, which of these is least likely to be the average salary of another of
the groups?

Answer these questions showing your work plz

Which is the equation of an ellipse with directrices at x = ±4 and foci at (2, 0) and (−2, 0)?

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.