Use set notation and write the elements belonging to the set {x | x is a natural number less than 6}.

Which fraction is not equal to 5/9? A. 15/27 B. 30/54 C. 40/74 D. 55/99

Evaluate each expression. 10³

Let U = {1, 2, 3, 4, 5} and A = {1, 2, 3}. Find A′.

Evaluate each expression. 2∙5 - 10÷12

Write each fraction in lowest terms. 4/12

Find {16, 18, 21, 50} ∩ {15, 16, 17, 18}.