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
Each sheet is 3 rows and 3 stamps per row, each sheet contains 9 stamps (3*3). For six sheets, multiply 9 stamps per sheet for 6 sheets (9*6), which results in 54 stamps.
The answer should be 15 miles per hour.
Answer:
c
Step-by-step explanation:
simplify and find x intercepts