Which equations are direct variation equations? select all that apply.
a. y = 3x
b. y = 7/x (fraction)
c. y = 5x2 ( five x squared 2)
d. y = x/9 (fraction)
e. y = .8x
f. y = 5/4x (fraction)
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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.