Phil is riding his bike. he rides 54 miles in 4 hours, 67.5 miles in 5 hours, and 81 miles in 6 hours. find the constant of proportionality and write an equation to describe the situation. let x represent the number of hours.
the constant of proportionality is k = answer

the equation that describes the relationship is y = answer
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What is the average rate of change for this function for the interval from x=2 to x=4 ?

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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.