Alex is saving money because she would like to purchase the new video gaming system, after 2 weeks of saving she has $47 after 24 weeks of saving she has $430, approximately how many dollars per week did alex save on average between weeks 2 and 24?
A$15.96 per week
B$17.41 per week
C$17.91 per week
D$19.88 per week
A$15.96 per week
B$17.41 per week
C$17.91 per week
D$19.88 per week