What is the volume of a cone that has a diameter of 4.5 and height of 6 5/8

V={h (3.14 ...) r^2} / 3

h=6 5/8 or 6.625

r=4.5/2=2.25

plug it in:

{6.625 (3.14 ...) [2.25]^2} / 3

={6.625 (3.14 ...) 5.0625} / 3

=105.3660724 / 3

=35.12202412

(wasn't sure what place you were supposed to round to, but V=35 unit^3)