1. Use set notation to list the elements for natural numbers divisible by 4

a. {4,44,444, ....}

b. {..,-8,-4, 0,4,8.....}

c. {4,8,12.....}

d. {1,2,3,4.....}

2. Which of the following is a subset of Z = {5,10,15,20,.....}

a. {-5,0,5}

b. {10,20...}

c. {2,4,6....}

d. {3,6,9...}

3. Find the cardinality of the set A = {the letters in the word MATH}

a. 4

b. {M,A,T,H}

c. {B,C,D,E,F,G,I,J,K,L,N,O,P,Q,R,S,U,V,W,X,Y,Z}

d. 0