Answer:
l= 30 w= 10
Step-by-step explanation:
Answer: 3x^2 +120x
Good luck !
<u>Answer: </u>The reciprocal of the given number is 
<u>Step-by-step explanation:</u>
To write the reciprocal of the given number, we first simplify the given number.
As, it is a mixed fraction, the simplification of this occurs:

So, simplifying the given mixed fraction,
, we get:

To write the reciprocal, we exchange the positions of numerator and denominator, we get:

Hence, the reciprocal of the given number is 
You can get the ansewrs from the back of the book