Replace P with 15:
d = -3(15)^2 + 168(15) - 315
d = -3(225) + 2520 - 315
d = -675 + 2520 -315
d = 1530
Answer:
b
Step-by-step explanation:
You are lazy... do it on your own.
Step-by-step explanation:

If it helps, write as a product of fractions, grouped by variable.

Now reduce using exponent rules.

Answer:
It only goes into it twice.
The decimal form is 2.40909091