Need help with this asap!

Answer:
1. m
Coefficient: 1
Variable: m
Degree: 1
Constant: Does not have one (if I am correct)
2. [tex]-7a^{2}[/tex]
Coefficient: -7
Variable: a
Degree: 2
Constant: Does not have one (if I am correct)
3. [tex]3t^{2} +4t-6[/tex]
Coefficient: 3
Variable: t
Degree: 2
Constant: -6
4. [tex]2-h[/tex]
Coefficient: 1
Variable: h
Degree: 1
Constant: 2