exam Maths Puzzle Numerical Ability

Can you help me simplify 2+3i/8i
Thank you

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exam Other Question

How would I explain why 0.4 is greater than 0.39? Helping my daughter and need your help. Need help solving this problem. I need to solve each system using the elimination method. Write no solution or infinitely many solutions where appropriate.

1. 2x + 5y = -1
x + 2y = 0

Thanks