Please, what is the answer?

Which of those sequences is a geometric sequence

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

Pyramid shown has a square base that is 18 inches on each side has a surface area of 164 square inches what is the slant height