Sqdancefan! Need help with following problems

Will give show work!

Write an equation for the function that includes the points (1,4/5) and (2,2/3)

Which equation expression the relationship between the number of boxes b and the number of cans c and the proportion is 48

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.