Please solve these for me

Which of the following is the missing term, a2, of the geometric sequence in which a1=2 and a3=200

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

Solve the inequaliy: (x^2+2)(x−2)^2(6−2x)> 0