Answer:
-9.705
Step-by-step explanation:
All you need to do is plug the values of f and g into the equation
If you have a calculator that would help you a lot.
Also, you do not need to say +-2 it is just -2
[tex]f-g-2[/tex]
[tex](-3.005)-(4.7)-2[/tex] (subtract -3.005 - 4.7)
[tex](-7.705 -2)[/tex] (subtract -7.705 - 2)
[tex]-9.705[/tex] (answer)