Will mark as brainliess and thanks for awnsering this simple question

Use the elimination method to solve the systems of equations.choose the correct ordered pair. 7x+4y=39

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.

The complement of an angle is one-sixth the measure of the supplement of the angle. what is the measure of the complement angle?