I need help on this question

X2 + y 2 = 36 x + y = 6 solve the system of equations.

15m is what percent of 60m; 3m; 30m; 1.5 km? the last one is km not m

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.