A palindrome is something that reads the same forwards and backwards.
If the number is a palindrome and it's between 300 and 400, then the
last digit must also be a ' 3 '.
So all we have left to fill in is the digit in the middle.
There are 10 possibilities for that one ... the digits ' 0 ' through ' 9 '.
So there are <em>10</em> palindromic numbers between 300 and 400.
Statistics should be used because the temperature would vary during January and you would want to give an accurate answer.
Answer:
81
Step-by-step explanation:

9 x 9 = 81
Should be B because the slope is 2