While you can type this question out in plain text, you can tell that they're a difference in the fonts in parts of the problems. That different text is called LaTex.
Yeah, I can see it now. The reason you couldn't show it was because the question was written in LaTex.
Make sure it isnt in LaTex or something because that might be the reason you can't see it.
Call 98! x. That means that 99! is 99x and 100! is 9900x. The numerator of the fraction is 9900x-99x-x = 9800x and the denominator of the fraction is 9900x+99x+x = 10000x. The resulting fraction simplifies to 49/50 which is our answer.
Two examples of an idiom are:
Break a leg!----Which means Good Luck Its raining cats and dogs!----Which means its raining really hard
1-4-6 and 1-3-7 are not possible trianlge side lengths.
The sum of the two smaller legs has to be greater than the largest leg in order for it to be a possible triangle. *Take note of this when listing out the traingles.