The Total cost for a tour group consisting of n number of people is 20n
An equation is an expression that shows the relationship between two or more numbers and variables.
Let T represent the total cost if a tour group consisting of n people
Since A walking tour of Washington, D.C., costs $20 per person. Hence, for n number of people:
Total cost = $20 per person * n persons = 20n
The Total cost for a tour group consisting of n number of people is 20n
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