-7 + 8 m + 4 n thus A. is your Answer
Step-by-step explanation:
Expand the following:
-(-8 m - 4 n + 7)
-(7 - 8 m - 4 n) = -7 - -8 m - -4 n:
-7 - -8 m - -4 n
-(-8) = 8:
-7 + 8 m - -4 n
-(-4) = 4:
-7 + 8 m + 4 n
step-by-step explanation:
i am not sure sorry : c