Answer:
A.
Step-by-step explanation:
#of pages for ss: (72+19) 91
# of pages for ss and science: (72+91) 163
#of pages of novel to read: (243-163) 80
A
total-243
science= 72 pages
social studies-91 pages
since she said 19 more then 72 you would add 19+72=91 pages
91+72=163
163 is how many pages she has read so far
the question is how many pages does she have left to read
243-163
=80 more pages left
The sum of all the angles of any quadrilateral is 360 degrees
115 + 97 + 58 + missing angle = 360
missing angle = 90 degrees
Hope that helps!
