11. Calculate the number of ways in which a) 9 children can be divided into groups of 2 and 3.

b) 9 children can be divided into groups of 3 and 4

Hence calculate the number of ways in which 9 children can be divided into groups
of 2. 3 and 4

If x = -2, then x 2-7x+10 equals a. 0 b.20 c.28

This is about circle theorems. someone asap : (

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.