Need answer quick! How do I express concentration as w/w, w/v,etc?

Question

Just about to go into an exam and I don't know how to do this...
'The solubility of oxandrolene in ethanol is 1g in 57cm^3. Express concentration of this solution as w/v, w/w and molarity
MW oxandrolone is 306.45g/mol
MW ethanol is 46.07
Density of ethanol is 0.810g/cm^3

Cheers!!

Ah, time is now up. Feel free to throw in your answers tho they'll not help :D

Answer 1

W/v 1g in 57 mL = 1g/0.057 l = 17.54 g/L

W/w 57 ml weigh 57*0.81 =46.17g so 1/0.04617 =21.7 g /kg ethanol

Molarity mass ethanol =46 so 17.54/46 =0.381 mole/L