Respuesta :

135 minutes for him to read 30 pages. 4.5 minutes for each pages.

Hope this helps!
procklown
18 divided by 4 = 4.5 (4.5 pages per page.) 4.5 times 30 = 135 minutes to finish reading 30 pages!

If this was the appropriate answer make sure to mark as the brainliest!
-procklown