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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Answer:
-9
Step-by-step explanation:
18/-9=(-2)
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the answer of 0.4 is 2/5 or 2 1/5
Answer:
what are the irrational numbers? and also, irrational numbers are never-ending decimals that have no pattern, such as pi; 3.141592653589793238426433832795028841971693993751058209749445923078164 0628620899862803482534211706
Step-by-step explanation:
irrational numbers cannot be written in fraction form
499 - 100%
599 - x
x = 599*100/499 = 120.04
x-100% = 120.04-100 = 20.04
Answer: The price increased by 20%.