Perform the indicated operation and simplify the result. 3a^3-13a+4/9a-6a+1 • 28+7a/a^2-16 I’m terrible at math. Please help-

there is no question content here, but you for the free points! : d

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step-by-step explanation:

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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 %