Answer:
<u>Part A</u>

Applying Distributive property: 
<u>Part B</u>

Step-by-step explanation:
<em><u> Attached is the model that belongs to this exercise (The model was missing)</u></em>
The formula for calculate the area of a rectangle is:

Where "l" is the lenght and "w" is the width.
<u>Part A</u>
Notice that the dimensions of the new bathroom are:

We do not know the width of the new bathroom, but we know that both rooms will have the same length. Knowing this, we can write an expression for the total area of both rooms by using the Distributive Property:

Applying Distributive property:
<u>Part B</u>
If the width of the bedroom is 18 feet, you need to substitute this value into the expression
in order to find the total square footage of the two rooms:

Answer:
#8: distance is 3 units
#9: distance is 1 unit
Step-by-step explanation:
for #8 the x values are the same and there's a 3 unit difference between the y value
for #9 the y values are the same and there's a 1 unit difference between the x values
hope this helps chu :3
Answer:

Step-by-step explanation:
Given radius
and arc length
.


Answer:
D. 
Step-by-step explanation:
The computation of the length of a diagonal (AC or BD) of the rectangle is shown below:
As we know that
The Diagonal length of AC is


Therefore correct option is D.