Hi Lawrence!
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We Know:
Charges $350
$25.50 for each person
Alt and Traci don't want to spend more than $8,000
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Inequality:
x = number of guests
y = total
350 + 25.50x = y
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Solution:
8,000 - 350 = $7,650
7,650 / 25.50 = 300
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Answer: Walt and Traci can have 300 guests without paying more than $8,000.
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Hope This Helps :)