Recall from example 1 that whenever suzan sees a bag of marbles, she grabs a handful at random. she has seen a bag containing  four  red marbles,  five  green ones,  four  white ones, and  two  purple ones. she grabs  eight  of them. find the probability of the following event, expressing it as a fraction in lowest terms. she has at least one green one.

Ineed here’s a picture of the question

"curse these trig-loving pirates! " devora mutters as she looks at the map. then, after thinking for a moment, she walks back to the entrance of the secret cave, measuring 48 meters along the way. after performing a calculation, devora walks back to the empty treasure, faces the entrance, and turns a certain number of degrees to her left before walking 89 meters to the treasure. supposing that the angle at the cave entrance is acute and that devora's calculations were correct, how many degrees did she turn?

What is the difference between a linear interval and a nonlinear interval?