Suppose the tree diagram below represents all the students in a high school and that one of these students were chosen at random. if the student is known to be a girl, what is the probability that the student is righthanded
a) 1/6
b) 5/6
c) 1/4
d) 3/4

Luigi is the first person to finish a 5k race and is standing 13 feet beyond the finish line. another runner, mario, is still running the race and has approximately 24 feet before he reaches the finish line. what is the distance between mario and luigi? explain through words, numbers or pictures how you found the answer.