If z varies directly as x, and z = 30 when x =8 , find z when x=4

Hi my sisters and brothers can tell me the answer because i don’t understand the question

Gh bisects fgi. find the measure of hgi •15° •21° •10° •8°

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.