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The answer is 40.
Tohjoannapro ∙
18 + 22 + 2 + 2 = 40.
4 + 2 x 9 = 4 + 18 = 22
18+24+16+22 42+38 =80
727
-22
69
24 + 18 + 20 + 22 = 84
1/2 + 7/22 = 11/22 + 7/22 18/22 9/11.
65
160
The average of 18 and 22 is 18+22/2 = 20
22-15=7 and 18+7=25 so 25