Mathematics, 29.01.2021 19:50, slimgemmx

Could someone please tell me which one I got wrong (it won’t tell me what I got wrong or right) and explain the steps to me for whichever is incorrect? Simplify.
1.) 6/i
• -6i

2.) 7/ -8-4i
• -1+i/2

3.) 3-9i/ 2-10i
• -7i/10

4.) Simplify the imaginary number. (No exponents)
i^23=_
• -1

5.) Simplify the imaginary number. (No exponents)
i^113=_
• i

6.) Multiply using the box method or the FOIL method (aka distributive property). Simplify your answer.
(8-2i)(5+2i)=_
• 11+3i
(thats my simplified answer; the unsimplified is 44+6i, right?)

7.) Simplify the imaginary number. (No exponents)
(7+i)(-4+3i)=_
• 17i+31

8.) Simplify.
8i/-7-10i
• -i/2

Answers: 2

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Could someone please tell me which one I got wrong (it won’t tell me what I got wrong or right) and...