Intro to Logic: Constructing Proofs

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Ace189
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Hey, I'm new to the forum so I'm not sure if I posted this in the right section. I'm taking Intro to Logic and I'm having some problems.

Proofs: Construct proofs for each of the following symbolic arguments.
Commas are used to mark the breaks between premises. (Each proof can be
completed in fewer than 10 steps, including premises.)

^These are the instructions my textbook gives. I have no clue on how to start this at all. Could someone explain this to me please.

2. (W → U) • ∼X ∴ ∼U → ∼W

3. F → ∼G, G ∴ ∼F

Rewrite it :

3) 1.F → ∼G
2.G ∴ ∼F

Other than that I have no clue what to do...
 
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bump... no one has any input at all? :(