Sandra has 46 fewer coins than Martha. Sandra has 57 coins . how many coins does Martha have?
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because the numbers raised to negative powers must be flipped over the divisor to become positive. Then, when multiplying 2 and z, you add their exponents.
because the numbers raised to negative powers must be flipped over the divisor to become positive. Then, when multiplying 2 and z, you add their exponents.