ur answer to this question is -6
10 x n +15 +11 x n
btw you know that x= the multiplication sign right.
The first part is 1325
10 x 35=350
15 x 65=975
The you add them which equals 1325
If you mean the calculation of 77x11 then the answer is 847
The frequency is everyday that things happen they happen every day
