To solve the problem, we first analyze the given table and calculate the sum of all elements.

Step 1: Calculate the sum of each row

• First row: 3 + 5 + 7 = 15
• Second row: 2 + 4 + 6 = 12
• Third row: 1 + 3 + 5 = 9
• Fourth row: 0 + 2 + 4 = 6

Step 2: Sum all row totals

Total sum = 15 + 12 + 9 + 6 = 42

Answer: 42

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