exam Maths Puzzle Numerical Ability

Hi! I need some help solving this equation....

2-|6-8|+5
3(----------) + (sqrt)9+16
4-5*2

Thanks in advance for your help

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exam Other Question

f(x)=2x^2-x+7; g(x)=x-1 find (f-g)(x) If five people are wearing five different hats, and each person is given a random hat, what is the probability that all five people get the correct hat?

i tried and tried on this one, but i failed.