exam Maths Puzzle Numerical Ability

classify the given numbers as real and rational, real and irrational, or complex.

1) (4)^(1/2) + 2

2)6+0i

3)3i

4) 1

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exam Other Question
write an equation in slope- intercept form for the line that contains the point (2,5) and is perpendicular to the line 6x+2y=24 the perimeter of a rectangle is 30 meters. If the length is 5 meters more than the width, then what is the length and the width of the rectangle. Make a picture.

Please show me how to solve this problem? thanks!