Please help ill give brainliest (when I can) 4)The length and width of a rectangle are in a ratio 3: 1. If the width is 7 cm, then the length of the rectangle is: * 10 points
14 cm
16 cm
18 cm
21cm

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 %