Answer:
19/20 of a mile.
Step-by-step explanation:

The common denominator is 20 so we times the first one by 2 the second one by 5 and the last one by 4. (Both numerator and denominator.)
You will end up with this 
Answer:
it is Ahmed shoevked more your calculations are wrong
here's the solution : -
if i made 9 costumes and it is 30 % of total costumes, so lets take the total number of costumes as <u>x</u><u> </u>
so, by above statement we get,

=》

=》

so, total number of costumes = 30 costumes.
D. Give performers an unfair advantage
Let’s talk about option A; Drugs that athletes take (for e.g. steroids) they INCREASE athletes muscle mass & endurance. They look bigger & muscular than a normal natural athlete.
Option B is also incorrect because there is no drugs that are legal in sports
Option C - It increase the athletes performance and your extremely energetic. You are doing what an natural cannot do in a short period of time.
SO OPTION D - It’s unfair to the natural ones