The answer is 39. The rule is: 2 + (2^N) + N and N begins from 0. For example for last Triangle N is equal to 5, then the answer is: 2 + (2^5) + 5 = 39

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The answer is 101 1st Row: 3X = 60 Then X = 20 2nd Row: X + 2Y = 30, As 1st Row X = 20, Then Y = 5 3rd Row: Y - 2Z = 3, As 2nd Row Y = 5, Then Z = 1 And the Final Row: Z + (X * Y) = 1 + (20 * 5) = 101

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