exam Maths Puzzle Numerical Ability

Dear Edwin, thank you so much. I reentered the problem, hope this is better. Thanks again.

lim (x/2 + 3) =
x→0

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exam Other Question

I have tried these several times and still get the wrong answer - HELP!!

g^2+5g+4/5g+5/g^2+8g+16/g^2+g-12
(hope I wrote this correctly - need to solve /simplify
(x+1) divided by x^2+2x+1/x^2+13x+12 - HELP
Thanks alot!!!! horse is 2/3 as old as carabao, the difference between their ages is 4. how old is the carabao?