The number of rows in the arena is 26
<h3>How to determine the number of rows?</h3>
The hockey arena illustrates an arithmetic sequence, and it has the following parameters:
- First term, a = 220
- Sum of terms, Sn = 10920
- Common difference, d = 16
The number of rows (i.e. the number of terms) is calculated using:

So,we have:

Evaluate the terms and factors

Evaluate the like terms
21840 = n(424+ 16n)
Expand
21840 = 424n + 16n^2
Rewrite as:
16n^2 + 424n - 21840 = 0
Using a graphical tool, we have:
n = 26
Hence, the number of rows in the arena is 26
Read more about arithmetic sequence at:
brainly.com/question/6561461
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To find the answer, find the unit rate by dividing 57 by 19. The answer to that is 3. Multiply 48 by 3. That’s how much it costs. Your final answer is 144 cents. I hope this helps!
Hi mate!
The answer after simplifying is: 2x^2-6x+7
Please let me know if you need further assistance! Have a terrific evening.
~Brooke❤️
A) triangle c, has the largest area
b) a= 1/2 (3) (3) a= 4.5
the picture shows what i mean hope this helps :)
D. 2r+15 all you do is combine like terms so all ''r''s and constants