Achinese restaurant has a buffet that includes ice cream for dessert. the table
shows the selections made last week.
vanilla
strawberry
24
18
12
12
21
15
a. which flavor is the most popular? which serving method? is the combination
of the most popular flavor and serving method the most popular dessert
choice overall? explain.
b. which of the following is more likely? explain.
• a customer chooses vanilla, given that the customer chose a cone.
• a customer chooses a cone, given that the customer chose vanilla.
c. a class of 24 students gets the buffet for lunch. if all the students get ice
cream, about how many will get a cone or vanilla? explain.

Mrs. julien’s and mrs. castillejo’s classes are selling cookie dough for a school fundraiser. customers can buy packages of macadamia nut chip cookie dough and packages of triple chocolate cookie dough. mrs. julien’s class sold 25 packages of macadamia nut chip cookie dough and 30 packages of triple chocolate cookie dough for a total of $221.25. mrs. castillejo’s class sold 5 packages of macadamia nut chip cookie dough and 45 packages of triple chocolate cookie dough for a total of $191.25. (a) write the system of equations that model the problem. be sure to explain which equation represents which situation. (b) find the cost of each type of cookie. show your work. (c) explain which method you used to solve the system and why you chose that method.