Can someone please check my answers?

Question

Thank You

1) Find an equivalent expression without parenthesis
-(y+87)
Answer: -y-87

3) Solve
-3x-13x=96
answer: x= -6

4) Find the decimal notation
14/25
Answer: .56

5) Divide if possible
7/0
Answer:0

6) Solve
7x+10=52
Answer: x=6

Answer 1

1 yes
3 yes
4 yes, but don't forget the leading zero (0.56)
5 infinity or no meaning
6 yes

Answer 2

Thank you very much