21/28 is equlvilant to 7/8
(972.41 + 1,620) =
2592.41
2592.41 ×

=
51.8482
So, that means that your answer would have to be:
51.8482Just change "

" to
0.02 and by the way lineup the decimals and do P.E.M.D.A.S
:)
Answer:
I need more information
Step-by-step explanation:
The volume of a sphere is calculated like so:
v = 4*pi*r^3/3
so half sphere will have half that volume:
v = (<span>4*pi*r^3/3)(1/2)
</span>v = <span>4*pi*r^3/6
</span>plug in the data:
v = <span>4*pi*(10)^3/6
</span>v = 2094.4
that is the volume of the half sphere