You need to find how much a pound of lawn seed covers. Once you fine that divide it by 8400 square feet and you'll get your answer.
Answer:
Equation is 42t
So,
t=12
According to equation
Put value of t
=42(12)
=504
So 2nd option is correct.
The answer to this is the exact same. It is 1325.
to put them together and add them.