<span>Anna learns in her science class that the human eye blinks an average of 4,200,000 times a year. What is this number expressed in scientific notation?</span>
Answer:
19y - 9
Step-by-step explanation:
-3(-4y + 3) + 7y =
Distribute the -3.
= 12y - 9 + 7y
Combine like terms: 12y + 7y
= 19y - 9
Answer:
434.9
Step-by-step explanation:
The circumference is 29.53.
Hope that this helps!
Answer:
Step-by-step explanation:
