What 2 numbers can you multiply to get -6 and then add to get 5

Solve this equation using substitution. {4x + y = −2} {4x + 6y = 44}

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.

If the value of cos330°is√3/2 then find cos 165°.