Twelve of the 28 students in a class have a dog. What is the ratio of students who have a dog to students who do not?

answer: it's d

step-by-step explanation:

the formula of a slope:

we have the points (-2, 7) and (2, 3). substitute:

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 %