Need help with number 5, but for 6 and 7 I just need to know what I'm supposed to do when it comes to constants? Could it be explained in terms of what lines the run time complexities are occuring?

Problem 5 Find the running time equation for the following program. ]: # # Input: A is a list of numbers, z is a number # def prob5(A, 2): output = [] for x in A: for y in A: if x+y==Z: output.append(z) return output ANSWER Problem 6 Find an upper-bound complexity of the running time equation for prob5. ANSWER Problem 7 Find a lower-bound complexity of the running time equation for prob5