A box contains 44 red marbles, 33 green marbles and 22 blue marbles. One marble is removed from the box and then replaced. Another marble is drawn from the box. What is the probability that the first marble is blue and the second marble is green? a;2/27
b:6/99
c:30/99
d:14/81

Answer the questions in the attachment. a rescue helicopter is at point a and a rescue boat is at point e. the helicopter pilot spots boats in distress at points d and c,with angles as marked in the diagram. figure abce is a rectangle. the altitude of the rescue helicopter, represented by ae, is 5000 feet.

This is about circle theorems. someone asap : (

Whats are the trickiest steps to do when adding or subtracting rational expressions? how does knowledge of rational numbers u in adding and subtracting rational expressions?