<h3><u>Answer</u>:- </h3>

<h3><u>Solution:-</u></h3>
Since painting is done on outer surface of cubical block we will have to find its surface area which is given by-

- <u>where a is side of the cube </u>



Now,



Thus it would cost $ 307.2 to paint the entire cubical block.
The answer to (-5 × 2) 3 = -30.
Answer:
I'm pretty sure that it's C.
I'll go with A and B
Hope this helps
You have to distribute the 7 to x and 2 so :
7x+14=2x-1
Add one to both sides (inverse operations)
7x+14=2x-1
+1 +1
7x+15=2x
Cross Cancel by subtracting 7x from both sides
7x+15=2x
-7x -7x
15=-5x
Divide by -5
15/-5= -5/-5
X= -3