Ononot — Starting with \det(A) = 5, matrix B is obtained from A by ap

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Starting with $\det(A) = 5$ , matrix $B$ is obtained from $A$ by applying these row operations in sequence: (1) Multiply row 1 by 3, (2) Swap rows 2 and 3, (3) Add row 2 to row 1, (4) Multiply row 3 by $-2$ . What is $\det(B)$ ?