exam Maths Puzzle Numerical Ability

Hi,
how do I represent the following on a Pie Chart:

Four Football teams each have the following Goal Difference;

Blue Team GD +14

Red Team GD +23

White Team GD -5

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exam Other Question

Thanks for responding to my question. I understand what you were doing but I am still confuse about where the other equation works in f(n)= f(n-1)+n. Some other problems have this equation changing. ie: f(n)= f(n-2) + f(n-1) and f(0)=1

Kate Is this true or false?
The function f(x) = 3^x grows three times faster than function g(x) = x. Could you please explain this to me. Thanks!