Answer:
solved
Step-by-step explanation:
4n-28 -2n -6 -15n
-13n-34
-(13n+34)
Since 7 pages could be in 5 min.
So time required by 1 page 5/7 min.
So time required by 175 pages =175×5/7=125 min.
= 2 hours and 5minutes
Supplementary angle = 180
180 - 51 = x
x = 129
C) 129 degrees is your answer
hope this helps
Step-by-step explanation:
