exam Maths Puzzle Numerical Ability

f(x)=square root of x+2, g(x)=8x-6. Find (f*g)(x)

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exam Other Question

Rewrite the equation -7x + 8y = -40 as a function of x. Number 6: Phil can furnish the garage in 12 hours, and Rick can do it in 10 hours. They work together for 3 hours. How long will it take Rick to finish the job alone?