HELP ASAP 1. A known number that is a factor in a variable term. is called?

2. A letter or symbol that stands for a number. is called?

3. An expression with no variables. is called?

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.