49
144
The given number sequence is a series of perfect squares: 7^2, 8^2, 9^2, 10^2. Therefore, the next number in the sequence would be 11^2, which is 121.
121.
22
121
121
61 81 101 121 141...you get were im coming from!
100 is the next square number (10 x 10)
100, 121, 144...
49
121/100 = 121/100
25 36 49 64 81 100 121 144