PLEASE HELP!!! I AM GIVING 20 POINTS! Create a sequence that begins with a positive integer, is decreasing by multiplication, and is infinite.

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

With both problems. a.s.a.p directions on photo ^

Math question.. plz me .. best answer all