a manufacturer uses a mold to make a part in the shape of a triangular prism. the dimensions of this part are shown below. which estimate is closest to the volume in cubic millimeters of the part? 108 217 440 880

White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.