Write the following sets in roster form:

C = {x : x is a two-digit natural number such that the sum of its digits is 8}


The elements of the set are numbers 17, 26, 35, 44, 53, 62, 71, 80


As


0+8 = 8 but putting 0 in tens place makes it single digit number so will not consider it.


8+0 = 80, number is 80


1+7 =8, number is 17


7+1 =8, number is 71


2+6 = 8, number is 26


6+2 = 8, number is 62


3+ 5 = 8, number is 35


5+3 = 8, number is 53


4+ 4 =8, number is 44


Set in roaster form is


C= {17, 26, 35, 44, 53, 62, 71, 80}


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