Select the mathematical sentence that is true. a. 3 • (7 – 3) + 5 ≤ 6 + 2 • 1 b. 3 • (7 – 3) + 5 < 6 + 2 • 1 c. 3 • (7 – 3) + 5 > 6 + 2 • 1 d. 3 • (7 – 3) + 5 = 6 + 2 • 1

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