10 · 8 with a exponent of -1

1.25

Step-by-step explanation:

So 10 * 8 ^ -1

8 ^ -1 = 1 / 8

10 * 1 / 8 = 1.25

{3 + i, 3 - i, 3, -1}

step-by-step explanation:

the answer is d

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