In a class of 32 students
The mean height of the 14 boys is 1.56 metres
The mean height of all 32 students is 1.515 metres
Workout the mean height of the girls

How do the number line graphs of the solutions sets of -23 > x and x-23 differ?

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.

Solve the following pair of equations for x and y: ax/b_ by /a= a +b; ax - by = 2ab