Answer:
400. just use simple devision and it'll tell you.
The factor of 11 is going to be 77 because you have to stay in between 70 to 80
and 7 times 11 is 77. It also has to be a number in the 11 timetables. It can't be 88 because we can't cross 80 so the factor is going to be 77.
Hope it helps
A, C and D because the angles are named in order. Q=T R=U and so on
