A science museum has a spherical model of the earth with a diameter of 6.5 m. What is the volume of the model? Use 3.14 for and round your answer to the nearest whole number. Show your work
v=4/3*3.14*r^3
v=4/3*3.14*3.25^3
v=4/3*3.14*34.3
v=144m^3
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