Please help with 1) (a) (b) and (c) and then 2)

1. (12 pts) Find the big-O estimate for each of the functions below. Get the bound in terms of a smallest single term such as or n. Specifically, find least integer n, and smallest numbers C and k and prove your estimate. Provide plots of the function and the bound on the interval of the big-O bound. + 2 (c) 25log(20) k2k = (n-1 )2n+1 + 2 1