Numbers 2, 4 and 5 are the correct answers.
Hope this helps!
Answer:
3339/2=1669.5
Step-by-step explanation:
The train is traveling at 165 mph
495/3=165
825/5=165
1155/7=165
1485/9=165
Answer:
you just shoed the answers
Step-by-step explanation:
The <em>echo</em> number 20222022202220222022 is the <em>perfect</em> square of 4496890281.
<h3>What echo number is a perfect square</h3>
An <em>echo</em> number has a <em>perfect</em> square if its square root is also a <em>natural</em> number. After some iterations we found that <em>echo</em> number 20222022202220222022 is a <em>perfect</em> square:

The <em>echo</em> number 20222022202220222022 is the <em>perfect</em> square of 4496890281. 
To learn more on natural numbers, we kindly invite to check this verified question: brainly.com/question/17429689