There are 8 digit mobile numbers. From that how many 8 digit mobile numbers can be formed if any digit can be repeated and 0 can also start the mobile number?	Choose the most appropriate option:  A) 9^2  B) 7^3  C) 10^8  D) 11^9  E) 12^3
Here the digits(0,1,2,3,4,5,6,7,8,9) can be repeated and 0 can also be used to start the mobile number. Hence, any of the 10 digits can be placed at each place of the 8 digit number.   10	10	10	10	10	10	10	10   Hence, required number of 8 digit mobile numbers   =10^8   10^8
<result>C</result>
There are 8 digit mobile numbers. From that how many 8 digit mobile numbers can be formed if any digit can be repeated and 0 can also start the mobile number?