Answer:15
Step-by-step explanation:
Given
Craftsman sell 10 Jewelry set for $500 each
For each additional set he will decrease the price by $ 25
Suppose he sells n set over 10 set
Earning
Earning 

differentiate to get the maximum value

Equate
to get maximum value



Thus must sell 5 extra set to maximize its earnings.
Assuming the ':' means an = sign, 2
=10 simplifies to 2
=8
Answer:
-6y^2 -2
Step-by-step explanation:
Answer:
3/11
Step-by-step explanation:
i did this question it 3/11