What is the common ratio of the geometric sequence below ? -96 , 48 , -24 , 12 , -6

Ineed with number 17 i don’t get it at alll

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

What would the rule be for the reflection of y=-3