Answer:
18
Step-by-step explanation:
÷ 
Keep Change Flip
×
= 
I know, you have to divide 90 by what ever the length is, then you have to figure out where the points are. So it should be.... D!!!
5 is in the ten thousands place now. Since the next digit (a 6) is greater than 5, we must round UP: 360000 is to the nearest ten thousand.
Answer: c=36
Step-by-step explanation: c/4-5=4
Add 5 to 4
c/4=9
9 divided by 1/4
C= 36