exam Maths Puzzle Numerical Ability

Problem:
find the constant of variation k
m varies directly with n; m = 144 when n = 8

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exam Other Question

Given f of x = 2x(to the 3rd)-7x(squared)+9x-3, us the remainder theorem (synthetic division) to find f of (-4). Multiply the polynomials below using one of the three methods shown in the lesson.

(2x - 3)(x2 + 5x - 3)