two Aps have the same first and last terms. the first Ap has 21 terms with a common difference of 9. how many terms has the other Ap if its common difference is 4?​

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.

What is r i 4.5+10r=-6.5 with work pls

Two consecutive negative integers have a product of 30. what are the integers?