can anyone answer this plss

Answer:
1. 1/2m
2. I don't know the answer sorry. 3. 1/m+4 4. 1/2 m + -1/2 5. m+ 1/2 6.m-1/m-2 7. m+4 /m² +2m+4 D. d= 1/2 m I. I= 2/m V. m= 2v-1 /v-1 O. m= o + -1/2 R. m= -r+4/r C. c= 1/m+4