Apair of diamond earrings have been marked up 50% and is now selling for $198. how much were the earrings before the mark up?

132, it is 150% the original price so you are going to divide 198/1.5 which is 132

The answer is c because you turn 17.5% into a decimal which gives you .175 then you times that by $361.35 which gives you 63.23625 but then you round that which gives you 63.24. then you at 63.24 pulse 361.35 and you round it which gives you $425

Where is your question?