As a host of the party, you plan to give a jelly in a bowl shaped like a hemisphere of diameter 10 cm contains a cherry shaped like a sphere with a diameter of 1.5 cm and 3 cubes of 1-cm side nata de coco as a souvenir. If the bowl is filled to a depth of 4 cm, what is the volume of jelly it contains? How much jelly and nata de coco should be prepared if 315 guests will attend your party? [Hint: First, consider the case where the cherry and nata de coco is submerged, then the case where it is totally submerged]
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