Cheng-Yu ordered a book that cost $24 from an online store. Her total with the shipping charge was $27. What was the percent of
markup charged for shipping?

John bought 2 horses at rs 20000 each

Amachine part consists of a half sphere and a cylinder, as shown in the figure. the total volume of the part is π cubic inches.

Fracisco's game involves 3 green, 2 yellow, 4 red, and 3 black marbles. if he randomly draws three marbles from the bag, without replacement, what is the probability that he will draw yellow, and then red, and then black? a)1/192 b)1/72 c)3/220 d)1/55