Combine like terms. 9a+4b-7+6a-2b-9

plz help

Which of the following would be a good name for the function that takes the weight of a box and returns the energy needed to lift it?

Describe a situation that you could represent with the inequality x< 17

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.