Ayumi, a chef, wants to determine how many meals she cooked in
one evening. The table shows the four meals
she made and the number of people that
were served each meal. (Lesson 1-3)
Meal Number of People
Lasagna
27
Spaghetti & Meatballs 21
Steak & Potatoes
19
Shrimp Scampi
13
She uses the following steps to determine
how many total meals she cooked.
Step 1: 27 + 21 + 19 + 13
Step 2:27 +13 + 21 + 19
Step 3: (27 +13) + (21 +19)
Step 4: 40 + 40
Step 5: 80
Which property did Ayumi use in Step 3?

128/3reason being 5 and 1/3 = 16/316/3 • 2/3 = 32/31 and 1/3 = 4/3 32/3 • 4/3 this will equal 128/3

First, think of what you know. you know that the number t the end of the equation will need to be subtracted because it is the money he lost from buying the lawn mower. and your first two weeks have negative profit, so that tells you that c and d are wrong. now you can plug any of the weeks into a and b to see which one works. i'll start with plugging week 1 into a.this isn't right because it says your answer for week one should be -90.so now we need to try the same thing with b.this one got you the right answer, (sometimes if you only check with one of the weeks multiple will work so you need to check with more of the weeks, but it worked out fine here)this means that b is the correct answer.let me know if you need more clarification. i hope this : )