Activity 2: Sum it Up 1. A set with no element is an empty set or 2. The number of elements in the set refers to 3. The U is the set that contains all 4. If every element in A is also an element in B, then A is a 5. The symbol for empty set or null setis Activity 3: Solving True or False Given the sets below, write true if the statement is correct and base S = {0, 1, 2, 3, 4, ..., 10) 1 = ft., 0 = [d, a, y) N = roots, stena G = (Merca, Ves L = 13,6,9,12) V = {5, 10, 15, 20, 25) Saturn Urus​