`The missing number is D 8 32/52=0.61....
8/13=0.61....
Hope this helps
X=31 because
(2x)+(x-3)=90
2x+x-3=90
3x-3=90
3x=93
x=31
Since |-4|=4 and |5|=5
from lowest to highest,
-7, 2, |-4|, |5|
N = 7LH; where N = 2,310, L = 30
2310 = 7(30)H = 210H
H = 2310/210 = 11
The height of the wall is 11 feet.