The vertices of δrst are r(–7, 0), s(–3, 6), and t(9, 2). m is the midpoint of rt, and n is the midpoint of st. show that mn∥rs and mn=12rs.

i have to find the locations of m and n, the slopes of mn and rs, and the lengths of mn and rs.

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.