Sara's little brother is getting ready to color a picture of a rainbow that sara drew for him. to make the task easier for her brother, sara picks out 7 different colored crayons that match the colors of the rainbow and places them in a box. she asks her brother to randomly pick two crayons from the box, one after the other. the probability that the first color is violet and the second is orange, if the first crayon is replaced, is . the probability that the first color is violet and the second is orange, if the first crayon is not replaced, is .