Help its a test

B

Step-by-step explanation:

well there’s an easy way to do this. if i explain it it’ll be easier to understand where i’m coming from.

See all we have to do, is take the 12.50 and subtract it from 71.. which you would get 58.5.

now all we have to do is count up to 58.5 by 4.5

if you do that long enough you get 18.5 so r is 18.5

amd there you have your answer. if you did it by A, it would’ve taken a lot longer and been much more difficult

answer: if you weigh 60 pounds on earth, on the moon you will weigh about 10 pounds. if you weigh 120 pounds on earth, you will weigh about 20 pounds on the moon. since weight is caused by the mass of two objects that are near each other, the bigger the objects, the more the force of gravity.

step-by-step explanation: if you weigh 60 pounds on earth, on the moon you will weigh about 10 pounds. if you weigh 120 pounds on earth, you will weigh about 20 pounds on the moon. since weight is caused by the mass of two objects that are near each other, the bigger the objects, the more the force of gravity.

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 %