Um,
A.
-7.75<-8.45. No way, because if there area two negative numbers, there is one number that is greater than another one, that answer will be less than the smaller one, and to make this true
-7.75>-8.45, so this is the wrong answer
B.-2.8>-3.5, which is the correct answer
C.-11.1>10.7 is false because negative number could not be greater than positive number, and to make this true change the symbol:
-11.1<10.7
D.
6.52<6.5, false because 6.52 is greater than. 6.5, to make this true, here you go:
6.52>6.5
As a result, B is the correct answer. Hope it help!