Use a Venn diagram to find the greatest common factor of 12 and 30.
The GCF is?

How do i do this? i don’t understand

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.

Tom drove 206 miles in 3.9 hours. estimate his average speed.