Question: Bill’s graduation picnic costs $3 for every attendee. If there are 7 attendees, how much will Bill’s graduation picnic cost?
(1) $21
(2) $20
(3) $25
(4) $18
Solution:
Write an equation showing how the cost d depends on the number of attendees. Then solve.
d = 3 * 7
d = 21
If there are 7 attendees, Bill’s picnic will cost $21.
Then the option is (1).
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