The lengths of the sides of a triangle are in the extended ratio 3:10:12. If the perimeter of the triangle is 200 cm, then what is the length of the shortest side in centimeters?

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