Write the following sets in the tabular form:
{x:x is a two digit number, sum of whose digits is 9}

Write the following set in roster form: C = {x : x is a two-digit natural number such that the sum of its digits is 8}

How many different seven digit numbers are there, the sum of whose digits is even ?

Write the following 3-digit numbers in expanded form .Then ,do the same for the number you get by reversing the digits.The first one has been done for you. 317

Write the following 3-digit numbers in expanded form .Then ,do the same for the number you get by reversing the digits.The first one has been done for you. 701

Write the following 3-digit numbers in expanded form .Then ,do the same for the number you get by reversing the digits.The first one has been done for you. 429

Write the following 3-digit numbers in expanded form .Then ,do the same for the number you get by reversing the digits.The first one has been done for you. 660

Which of the following statements are true? The largest 4-digit number formed by 6,7,0,9 using each digit only once is 9706.