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Answer:
a) $554
b) y = 138.50x
c) see attached
Step-by-step explanation:
a) The cost is the product of the number of hours and the cost per hour.
cost = (4 h)($138.50 /h) = $554.00 . . . . for a 4-hour course
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b) As above, the cost (y) is the product of the number of hours (x) and the cost per hour ($138.50).
y = 138.50x . . . . tuition for x credit hours.
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c) As in part (b), the tuition is hours times 138.50. That means hours are tuition divided by 138.50.
