Anna makes $100 a week. she spends $70 a week and saves the rest. she is saving to buy a $240 sound system. how long will it take her to save the money? 3 weeks 4 weeks 6 weeks 8 weeks

Tabby sells clothing at a retail store, and she earns a commission of 6.25% on all items she sells. last week she sold a pair of jeans for $32.50, a skirt for $18.95, and 2 blouses for $14.95 each. what was tabby's total commission? a $4.15 b $5.08 c $81.35 d $348.60

I'm confused on this could anyone me and show me what i need to do to solve it.

What fraction is equivalent to 0.46464646··· a. 46⁄999 b. 46⁄100 c. 46⁄99 d. 23⁄50