exam Maths Puzzle Numerical Ability

The equation y = 10x - 50 describes the amount of money a class of students might earn from candy bar sales. What are the slope and y-intercept of this line?

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exam Other Question

Geometry. The volume of the box is represented by (x^2+ 5x + 6)(x + 5). Find
the polynomial that represents the area of the bottom of the box: x + 2.

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Evaluate without using a calculator or tables

sin(alpha + beta) and cos (alpha + beta), where alpha = pi/4 and beta = pi/3