volume of cone = [tex] \pi [/tex]r^2 h/3
r=2cm
h=9cm
cone = [tex] \pi [/tex] (2)^2 (9)/3 = 12[tex] \pi [/tex] = 37.699
volume of hemisphere = 1/2 (4/3[tex] \pi [/tex] r^3)
r=2cm
ice cream = 1/2 (4/3[tex] \pi [/tex] (2)^3 = 5.3[tex] \pi [/tex] = 16.755
12[tex] \pi [/tex]+5.333[tex] \pi [/tex] = 17.3333[tex] \pi [/tex] = 52[tex] \pi [/tex]/3
37.699 + 16.755 = 54.454
So your answers would be 54 cm^3 and 52[tex] \pi [/tex]/3 cm^3
