exam Maths Puzzle Numerical Ability

If 3 hens lay 4 eggs in 5 days, how many days will it take a dozen hens to lay 8 dozen eggs/

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exam Other Question

Hey!..can u please help me with this problem?..it has to be factored completely.

8b^2+12b+4

thanks! In this exersise,(a) find f(0),(b) solve f(x)=0. f(x)=x-x to the third