**Answer:**

<h2> 52 chickens</h2>

**Step-by-step explanation:**

Step one:'

given

we are told that the total number of animals is 169

the ratio of horses to chickens= 9:4

total ratio= 13

Required:

number of chickens

Applying part to all principle, let the number of chickens be x

4/13=x/169

cross multiply

4*169=13*x

divide both sides by 13

x=4*169/13

x=676/13

x=52

There are 52 chickens

**Answer:**

There is no graph

**Step-by-step explanation:**

**Answer:**

subtract

**Step-by-step explanation:**

27.75n+5.50=144.25

- 5.50 -5.50

------------------------------

27.75n= 138.75

27.75n/27.75

and

138.75/27.75

n= 5

23 mm, 20mm, 13mm sides: No equal sides and No equal angles are characteristics of a Scalene Triangle.

62,72,46 angles : All angles are less than 90°, this means that the triangle is an acute triangle.

Based on the above information the triangle is an ACUTE SCALENE TRIANGLE.