Answer
$12,420
Work Step by Step
1. Price for each 4-person raft: 28 + 2 = 30. Price for 38: 30 x 38 = 1140
2. Price for 6-person raft: 38 + 2 = 40. Price for 73: 40 x 73 = 2920
3. Price for 10-person raft: 70 + 2 = 72. Price for 58: 72 x 58 = 4176
4. Price for 12-person raft: 75 + 2 = 77. Price for 34: 77 x 34 = 2618
5. Price for 16-person raft: 85 + 2 = 87. Price for 18: 87 x 18 = 1566
6. Total 4th of July receipts = 1140 + 2920 + 4176 + 2618 + 1566 = 12,420
