What’s the percent increase from 6.2 to 9.1?

In which figure is de bc ? a. figure 1 b. figure 2 c. figure 3 d. figure 4

According to statistics a person will devote 32 years to sleeping and watching tv. the number of years sleeping will exceed the number of years watching tv by 18. over a lifetime, how many years will the person spend on each of these activities

What is the best way to answer questions with a x expression in the question. for example 3x + 10x=?