Hi, would you please help with those two questions in my homework? This topic is hard for me to understand.

HOMEWORK 1. Determine whether each below is an empty set or not. a). The set of woolly mammoth fossils in a museum. b). {o} c). {x x is a living woolly mammoth} d). {x/x is a natural between 1 and 2} 2. Determine whether each of sets is equal, equivalent, or neither. Explain briefly. a). A = {2, 4, 6, 8} and B = {2, 4, 6, 8, ...} b). A = {two} and B = {t, w, o} c). A = {3} and B = {} d). A = {months with exactly 30 days} and B = {April, June, September, November}