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Let f:{2,3,4,5} to {3,4,5,9}and g:{3,4,5...

Let `f:{2,3,4,5} to {3,4,5,9}and g:{3,4,5,9} to {7,11,15}` be functions defined as `f(2)=3,f(3)=4, f(4)=f(5)=5, g(3)=g(4)=7, " and " g(5)=g(9)=11. " Find " gof.`

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We have `gof(2)=g(f(2))=g(3)=7,`
`gof(3)=g(f(3))=g(4)=7,`
`gof(4)=g(f(4))=g(5)=11,`
and `gof(5)=g(5)=11.`
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