Answer:
what is this
Step-by-step explanation:
Answer:
first, third and last one
Step-by-step explanation:
<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>
You did not include the problem therefore i cannot help you with this but if you could message me the problem i’d be happy too