Answer:
according to me 1st option seems to be correct❤️
4 (i literally had to think about this cause i thought it was too easy )
Answer:

Step-by-step explanation:
Though it is not what you have written, we think you want to simplify ...

_____
When writing a fraction in plain text, parentheses are needed around the entire denominator. The order of operations tells you that a/bc = (a/b)c, not a/(bc).
Answer:
c
Step-by-step explanation:
Scientific notation is just rewritten so that it has a single digit in front of the decimal and that this is multiplied by a power of ten that makes this decimal equal to the original number.
In this case we have 2.67 million. Well a million is equal to 10^6, because 10*10*10*10*10*10=one million.
So in scientific notation you would write:
2.67X10^6