First we need to find a common denominator

=

now we can add them

+

=
Answer:
you answer is 3 pages per minute
Step-by-step explanation:
devours 90 pages half an hour and so that means in one hour he would devour 180 pages.
well all you have to do is divide 90 by 30
90/30 = 3
Answer:
I don't understand the question
Answer:
(1,-2) edge2020
Step-by-step explanation: