Can somebody please help me

Option A

Slope m is -1/3 and b is 1

Step-by-step explanation:

In the equation y = mx + b for a straight line, b is called the y-intercept of the line and  m is the slope of the line

By comparing the given equation, we can say that Slope "m" is -1/3 and y-intercept "b"  is 1

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 %