Which ordered pair is a solution of y=x+4? a (0, 0) b (5, 54) c (7, 28) d (9, 13) i am stuck on this can someone me this question is depending on my gade.

Is the square root of 4 plus the square root of 16 rational?

Solve each quadratic equation by factoring and using the zero product property. [tex]x^2+6x+8=0[/tex]

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.