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

Describe the locus of the points.

Points that are equadistant from the vertices of the polygon.
simplify- 3x(4+2y)-2x(3+8y)
This is my answer-
12x +6xy-6x+16xy Why is this wrong???