Select the correct answer. What is the value of this expression when a = 7 and b= -4? 29 - D 3​

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 %

answer: 0.26

i used the calculator on google

y/x of point b= y/x of point a

step-by-step explanation:

(i got the same question, this was the correct answer.)

it should be a.

hope it