Answer: Taking a poll of how many calls someone took anonymously and randomly choose 100 people
Step-by-step explanation:
At what rate does she become more proficient? You didn't mention the pattern
Answer:
14a^2
Step-by-step explanation:
3a^2+4a^2+7a^2
Combine like terms
Factor out a^2
a^2(3+4+7)
a^2(14)
14a^2
