Which number line represents the solution set for the inequality 3x < -9? +
+
4 -3 -2 -1 0 1 2 3
4
-4 -3 -2 -1 0 1 2 3 4
4 -3 -2 -1 0 1
2
3
4
-4 -3 -2 -1 0 1 2 3 4

According to a survey by the beach lifeguards, there is a 25% chance that surfers will see a dolphin while surfing. which simulation could you use to answer questions about whether a surfer will see a dolphin?