Train a arrives at central station on the hour and every 12 minutes. train b arrives on the hour and every 15 minutes. when do both trains arrive at the same time?
a) on the hour and 30 minutes past the hour
b) on the hour and 15 minutes to the hour
c) on the hour and 27 minutes past the hour
d) on the hour
explain why you chose the answer and how you achieved it.

Find the domain of the following expression: 1/(√x)-2

Type the correct answer in each box. spell all words correctly. a sequence of transformations maps ∆abc onto ∆a″b″c″. the type of transformation that maps ∆abc onto ∆a′b′c′ is a . when ∆a′b′c′ is reflected across the line x = -2 to form ∆a″b″c″, vertex of ∆a″b″c″ will have the same coordinates as b′.

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.