The pages read in 12.5 hours is 37.5 pages.
A linear function is a function that consists of a single variable raised to the power of one. An example is d = 2x
The number of pages read increases by 3 every hour. Thus the equation that can be used to represent this is: p = 3h.
p = (3 x 12.5) = 37.5 pages
To learn more about multiplication, please check: https://brainly.com/question/13814687