Answer:
-12b+6c+18
Step-by-step explanation:
you just need to add the same numbers and stuff
like -4b+(-8b)=-12 and so on
hope this helps ^^
<u>Answer</u>:
Length of the envelope = 14
Width of the envelope = 5.6
<u>Step-by-step explanation:</u>
Let the width of the rectangle be x
Then the length of the rectangle will be 
Also the length of the plastic band to cover the front and back of the envolpe = 
To cover one side th band required is
=>
=>
=>
=>
=>39.4
We know that the perimeter of the rectangle is
=> 2( L + B) = 
=> 2(
) = 19.7
=> 2( 
=> 
=> 
=> 
Now length of the envelope =
=> 
=> 
=> 14
Answer:
It takes the runner 3 hours to run 15 miles.
Hopefully, this is helpful!
What is the question? Pythagorean is not too hard. a^2 + b^2 = c^2
The answer would be 75 using the formula v=1/2(a)(c)(h)