The is a geometric theorem that says "if two lines are u perpendicular to the same line, they are parallel to each other." explain why this is true by writing and comparing equations for two different lines that are perpendicular to y=-1/3x.

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.