Answer:
a = a
b = b
c = c
Step-by-step explanation:
Formula: 
C is always the largest number
<em><u>a times a + b times b = c times c</u></em>
The factors of 21 are 1, 3, 7, and 21
Answer:
There is 1 boy per 2 girls
Step-by-step explanation:
The best statement that describes the associations between variable X and variable Y is the first option, "no association."