Solve the Problem $p$ Of Bolts Is Related to the Quantity $q$

Solve the problem.
-Suppose the price $p$ of bolts is related to the quantity $q$ that is demanded by:
$$p=550-5 q^{2}$$
Where $\mathrm{q}$ is measured in hundreds of bolts. Find the price when the number of bolts demanded is 700 .

A) $\$ 325$
B) $\$ 315$
C) $\$ 320$
D) $\$ 305$