Một hộp có 4 bi xanh, 4 bi đỏ, 5 bi vàng. có bao nhiêu cách chọn ra 4 bi có đủ 3 màu? có đúng 2 màu?

Aclass consists of 55% boys and 45% girls. it is observed that 25% of the class are boys and scored an a on the test, and 35% of the class are girls and scored an a on the test. if a student is chosen at random and is found to be a girl, the probability that the student scored an ais

Abouncy ball is released from a certain height. on the first bounce, it travels 32cm. with each subsequent bounce, it travels 9/10 the distance of the previous bounce. what is the total distance that the ball has traveled when it completes its 25th bounce?

The volume of a cube-shaped shipping container is 13,824 cubic inches. find the edge length of the shipping container.