This is the Questions

- i want it to be solved like this Method (This is an example)

1. Prove that running time T(n)=n3+20n+3 is O(n3) 2. Prove that running time T(n)=n3+20n+5O(n4) 3. Prove that running time T(n)=2n+15 is O(n) 4. Prove that 2n37n+71=(n3) Prove that 100n+5=O(n2) 100n+5100n+n=101n101n2foralln5n0=5andc=101isasolution