Find the least common denominator for the following rational expressions.
18 -5r st7
r-4';2-5r+4' m2 - 4r - 5
(r- 1)(r-4)(r-5)
(t-1)(r + 4){r – 5)
(r- 1)(r + 1)(r = 4){r - 5)
(r - 1)(r + 1)(r + 4)(r-5)
DONE

answer:   35 % is the probability of a late departure or an early arrival.

step-by-step explanation:

let l represents the late departure and e represents the early departure.

then, according to the question,

p(l) = 12 %,   p(e) = 27 % and = 4 %

and, we have to find out,

but, we know that,

which is the required equation that will use to find the probability of a late departure or an early departure.

therefore,   the probability of a late departure or an early arrival =   35 %

idk

step-by-step explanation:

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