13 The decimal expansion of an irrational number is: A Terminating B Non-terminating and repeating C Non-terminating and non-repeating D Terminating and repeating
15 Which property is demonstrated by (a + b) + c = a + (b + c)? A Associative property B Commutative property C Distributive property D Closure property
18 Which property is illustrated by 5 + (3 + 2) = (5 + 3) + 2? A Commutative property B Associative property C Distributive property D Identity property
20 Every rational number can be expressed as: A p/q, where p, q are integers and q ≠ 0 B p/q, where p, q are integers and q = 0 C A non-terminating, non-repeating decimal D The square root of a prime number