exam Maths Puzzle Numerical Ability

May I have some help with the following equation?

Solve the linear inequality. Express the solution using interval notation. )

2(-2x + 1) ≤ -8x - 22

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exam Other Question

A furniture company has established the price-demand function p(x)=65-2.3x and the cost function C(x)=250+15x, where x is in hundreds of chairs, and C is in thousands of dollars. Algebraically determine the zero(s) of the functions:
a) f(x)=(sqrt2(5)^-(x+1))-(sqrt50)
b) f(x)=sqrt3(2)(^2(x-3))-sqrt48