Answer:

Step-by-step explanation:
we know that
The scale is 
That means
1 unit in the drawing represent 40 units in the actual
or
1 inch in the drawing represent 40 inches in the actual
step 1
Find the actual dimensions of the living room
Multiply the dimensions of the living room in the drawing by 40


step 2
Convert inches to feet
Remember that

To convert inches to feet , divide by 12
so


step 3
Find the area in square feet
Multiply the length by the width

Convert to mixed number

Density = mass / volume
Density = 8,200 grams / (4*4*4)
Density = 8,200 grams / 64 cubic inches
Density =
<span>
<span>
<span>
128.125
</span>
</span>
</span>
grams / cubic inch
Answer:
-26 + 4/5d
Step-by-step explanation:
-2/5 ( 15 - 2d + 50)
= -2/5 ( 65 - 2d)
= -2/5 * 65 - (-2/5) * 2d
= -26 - (-4/5d)
= -26 + 4/5d
-10+2b+8
-2+8b+8
Calculated sum
-2+8b
Answer is -2+8b
I think it’s the number 3 I’m not sure I’m learning this stuff rn I’m getting the hang of it just it’s hard and not hard at the same time