A box contains 5 red chips and 7 blue chips. Unfortunately, the box is stored in the dark and you grab 4 chips without looking. What is the probability of selecting 2 red chips and 2 blue chips? Find your answer correct to 3 decimal places.

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