Can anyone help with these please

(i) If f(n) E 0(n) and g(n) E n). G) If f(n) E O(n), then n x f(n) E O(n3). (k) If f(n) E O(n) and g(n) E O(n2), then f(n) x g(n) E O(). (1) If f(n) E (n log n), then f(n) n E O(n2 logn) (m) If f(n) (n log n) and g(n) E (n logn), then f E (1). (n) If f(n) E O(n) and g(n) E O(n2), then lim-100 (o) If f(n) E (n) and g(n) E (n), then } E 1. (p) If f(n) E (n) and g(n) E (n2), then limn-too g(n) 0. (q) If f(n) E (n) and g(n) E (n), then g } E ei. (r) If f(n) E 0(n) and limn+oo g(n)-0, then g(n) E (n). (s) If f(n) E (n) and lim, +00g(n)--0, then g(n) e (n) (t) f(n) + g(n) E (max/(n),o(n)) (n), then f(n) + g(n) E e g (n