Answer:
1C is the correct answer.
Theorem
In a triangle, the measure of an exterior angle equals the sum of the measures of its two remote interior angles.
x + y = z
4n - 18 + n + 8 = 133 - 6n
5n - 10 = 133 - 6n
11n = 143
n = 13
z = 133 - 6n = 133 - 6(13) = 133 - 78 = 55
Answer: C. 55

=

equals
k = 15.6
First, simplify

to 1.2. Your problem should look like:

= 1.2
Second, multiply both sides by 13. Your problem should look like: k = 15.6, which is the answer.
The Dowers need to make 5 pies for 15 people.
Step-by-step explanation:
Given,
1 person = 3 slices of pie
15 persons = 15*3 = 45 slices of pie
It is also given that;
9 slices of pie = 1 whole pie
1 slice of pie = 
45 slices of pie = 
45 slices of pie = 5 whole pies
The Dowers need to make 5 pies for 15 people.
Keywords: multiplication, division
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