Who wants to talk? i need to get my mind off some things

Firms use marginal analysis to determine prices by a) changing prices in accordance with information from retailers. b) using comparisons with strong competitors to position prices accordingly. c) examining the effect on revenue of small changes to the price of one item. d) trying to minimize production costs by using better and more efficient methods.

The hidden observer theory of hypnosis emphasizes the role of hypnosis. a) habituation b) suggestion effect c) dissociation

What is the power of 10 when 0.00503 is written is scientifically notation