Which expression is equal to (7 * 2) 2? A)(7 + 2) × 2 B)(2×2)+7 C)7x(2 x 2) D)(2 x 7) + (2×2)

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1. Answer:

   C. 7 * (2 * 2)

   Step-by-step explanation:

   Figure out the original expression to see the equivalent expression.

   (7 * 2) * 2

   14 * 2

   28

   We have to look for an expression that equals 28.

   A is (7 + 2) * 2.

   (7 + 2) * 2

   9 * 2

   18

   A equals 18, so it’s not equivalent to the original expression.

   Now B, which is (2 * 2) + 7

   (2 * 2) + 7

   4 + 7

   11

   B equals 11, so it is also not equivalent.

   Now C; that is 7 * (2 * 2)

   7 * 4

   28

   C equals 28, so that is equivalent. Although we have found our answer, we need to make sure it’s right by evaluating D. ((2 * 7) + (2 * 2))

   (2 * 7) + (2 * 2)

   14 + 4

   18

   D, like A, equals 18, so it is also incorrect.

   C is the only expression that is equivalent to (7 * 2) * 2, so it is the answer.

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