Customers of a phone company can choose between two service plans for long distance calls. the first plan has an $11 monthly fee and charges an additional $0.14 for each minute of calls. the second plan has an $18 monthly fee and charges an additional $0.10 for each minute of calls. for how many minutes of calls will the costs of the two plans be equal?

All per-unit concepts rely on ratios,meaning,to provide a type of measurement

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

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.