Melanie banfield and stan shepherd are among 99 representatives making presentations at the annual sales meeting. the presentations are randomly ordered. find the probability that melanie is the first presented and stan is the last presented.

The first one, i believe, would be correct. all the others have one thing in common, and that's that they have repeating numbers. in the second one, x and y have repeating 6's and 3's, and in the third, x and y have repeating 6's as well. in the last one, there are repeating 3's. the first one has no repeating numbers.

40-24 to 4: 740+24=class4=boys 7=gals =4: 7