Need drawing not sure where m is
Answer:
4hrs 30 mins
Step-by-step explanation:
5hrs-90
x-81
cross multiplying gives us
405-90x then dividing through made x=4.5 which is = 4hrs 30mins
They have the same measurements but they are turned different ways
The Formula for the volume of a sphere is 
- r --> length of radius --> 2ft
<u>Volume</u> = 
The <u>volume is 33.51 cubic feet</u>
<u></u>
Hope that helps!