2 answers:
(3n)^2
3^2 n^2
3*3 *n*n
9 n*n
Answer:
.
Step-by-step explanation:
We have been given an expression
. We are asked to write our given expression without exponents.
Since 3n is raised to second power, this means that 3n is multiplied by itself.

Therefore, our required expression would be
.
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Answer:
0 and - 13/15
Step-by-step explanation:
speed is 45 miles per hour. 135/45=3, so the answer is 3hours (A)
There needs to be a graph in order for us to answer the question.
Please repost this question with an image.
Thank you.
<em>~ ShadowXReaper069</em>
48/6= 8 so 8 newspaper piles
5x+4+8x-3=79
13x=79-1
x=6
DBC=34
ABC=45
6x+20+2x+4 = 180
8x = 156
x=19.5
TQS=137
RQS=43