AN OBSERVER SPOTS A PLANE FLYING AT A 42 DEGREE ANGLE TO HIS HORIZONTAL LINE OF SIGHT. IF THE PLANE IS FLYING AT AN ALTITUDE OF 15000 FT., WHAT IS THE DISTANCE FROM THE PLANE TO THE OBSERVER

Out of 8 boys and 6 girls in a high school, a team of seven students is selected. what is the probability that three boys and four girls are selected? in your response, include an explanation and all of the calculations necessary to determine the probability.