exam Maths Puzzle Numerical Ability

What is the answer for (0+i^2)*(0+i^2)

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exam Other Question

Solve the inequality and write the solution in set builder notation:
1/3x + 1/5 equal to or greater than 1/10(x-2)
for the inequality 2x+3y>6
what is
1. slope
2. direction of the line (rise or fall left to right)
3. dotted or solid line
4. shading above or below the line