1. numbers have infinite nonrepeating decimal representations.

2. determine which numbers in the set are (a) natural numbers, (b) whole numbers, (c) integers, (d) rational numbers, and (e) irrational numbers.
{sqrt 5, -7, (-7/3), 0, 3.12, 5/4, 12, 5}
(a) 5, 12;
(b) 0, 12, 5;
(c) 0, 12, 5, -7, -3;
(d) -7, (-7/3), 0, 3.12, 5/4, -3, 12, 5
(e) sqrt 5

1. numbers have infinite nonrepeating decimal representations.

irrational

2. Determine which numbers in the set are (a) natural numbers, (b) whole numbers, (c) integers, (d) rational numbers, and (e) irrational numbers.

(A) 5, 12;                                                     (b) whole numbers
(B) 0, 12, 5;                                                 (a) natural numbers
(C) 0, 12, 5, -7, -3;                                     (c) integers 
(D) -7, (-7/3), 0, 3.12, 5/4, -3, 12, 5         (d) rational numbers
(E) sqrt 5                                                     (e) irrational numbers

Your maths is very weak try yourself this would improve your skills don't depend on others