book Maths Puzzle Numerical Ability

pencils at the school bookstore cost 8 cents each. stacy buys 3 pencils and her brother buys 4 pencils. wat is the total cozt of the pencils

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book Other Question

1.If α, b, g are the roots of the equation

x^3─7x^2 + x + 5 = 0

Find the equation whose roots are

α^2 + b^2, b^2 + g^2, g^2 + α^2.


2.Find all the fifth roots of (2+i).
I need help with this question..

given x < 0 and abs(x-1) < 3, state the interval in which x must lie