Answer:
whole numbers and natural numbers
Step-by-step explanation:
whole numbers are 0,1,2,3,5...
natural numbers are 1,2,3,4,5,6.....
Put 10 where n is, then do the arithmetic.
... the cost for 10 people equals 100 + 4·10 = 100 + 40 = 140 . . . . dollars
$50.08, I think. Because you can substitute 3x = $75.12 and solve for x
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