Question

Write the following in roster form and determine its cardinality A={x:x is a multiple of 6 less than 18} *





A=(1,6,12,18); n(A)=4

A=(6,12); n(A)=2

A=(6,12,18);n(A)=3

please answer with working I really need help,and fast​

Answer 1

Step-by-step explanation:

A = { 6, 12 } n(A) = 2

option second