The ratio of hydrogen to oxygen in a plant sample is 18:12 the sample has 42 units of oxygen how much hydrogen does the sample have A 28
B 30
C 48
D 63

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.