The achart shows the most common causes of drath in eertain areas of the United States. Whe the Venn diagram to indicate in which region each cause should be placed. 13) cancer A) II B) V C) I D) IV E) VI Use the formula for the cardinal number of the union of two sets to solve the problem. 14) Set A contains 9 letters and 6 numbers. Set B contains 9 letters and 11 numbers. Three letters and 5 numbers are common to both sets A and B. Find the number of elements in set A or set B. A) 23 B) 43 C) 27 D) 0 E) 35 15) Set A contains 35 elements and set B contains 22 elements. If there are 20 elements in (A B ) then how many elements are in A ? A) 17 B) 8 C) 5 D) 13 E) None of the above