Answer: B
Step-by-step explanation:
'Product' means to multiply, in this case, we are multiplying 50 and n.
Number 3 because it holds the smallest decimal!
So to multiply standard form we multiply the 2 numbers and the 2 indices separately.


So we've got

However Standard form must be

therefore we need to divide that by 10 but to get the same number we add one onto the power of 10.
So the answer is:
lbs of oxygen are produced in the rainforest each year.
So it is asking you to group like term so
x terms can be grouped/added/subtracted to other x terms, but not to x^2 or x^3 terms
x^2 terms to x^2 and so on so
1. 9-3k+5k=
9+(5k-3k)=
9+2k
2. k^2+2k+4k=
k^2+(2k+4k)=
k^2+6k=
She spent 1 hour and 15 minutes at the fair, if it’s open at that time.