On average, people of a certain country spend 20.5 hr per month watching videos on a computer or on a television. They spend 2.1 more hours watching videos on a television than on a computer. How much time do they spend on each?

Computer: 9.2 hours

TV: 11.3 hours

Step-by-step explanation:

Computer: t

TV: t + 2.1

t + (t + 2.1) = 20.5

2t + 2.1 = 20.5

2t = 18.4

t = 9.2

t + 2.1 = 11.3

a) justify

step-by-step explanation:

justifying is just part of everyday life. justify kind of means proof so i think the answer is a) justify.