Answer:
2x-9y
when you add 2 and 7 it's 9, so add the y, then 4-2 which is 2, add an x.
2x-9y
Answer:
8:25
Step-by-step explanation:
Theres 8 biography books and 25 books in total. 8:25
:D
<span>C = 2(pie)r
50.24 = 2(3.14)r
50.24 = 6.28r
50.24/6.28 = 6.28r/6.28
r= 8
</span>