exam Maths Puzzle Numerical Ability

simplify:(-7)(-3)+(-2)^2+(-16)(2)

14x(-3y)-(-3)(-5y)

4[3x+(-2x)]-5(3x+2x)

(70a-40b)/(-10)

-3(x-5)-(x+7)

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exam Other Question

Suppose that the width of a rectangle is 2 inches shorter than the length and that the perimeter of the rectangle is 80.

A) Set up an equation for the perimeter involving only
solving inequalities: 5x - 14 <6