Which of the following polygons has nine lines of symmetry?
a. regular octagon
b. regular heptagon
c. regular nonagon
d. regular hexagon

Lisa has three classes that each last 50 minutes. what is the total number of minutes of the three classes

40) linda was making chocolate truffles for the first day of school. the recipe for 20 chocolate truffles is: i cup of cream 2 cups of dark chocolate she noticed this will not be enough truffles for the 42 sure that all students in each homeroom next year. to be sure that all students receive a truffle, linda must adjust her recipe. a. complete the recipe for 42 truffles cups of cream - cups of dark chocolate work:

B. two events are dependent if the occurrence of one event changes to occurrence of the second event. true or false