Solve the Problem $\mathrm { n }$ Games Can Be Sold in a Month If the Price

Multiple Choice

Solve the problem.
-A retailer knows that $\mathrm { n }$ games can be sold in a month if the price is $30 - 0.2 \mathrm { n }$ dollars per game. If he buys each game for $\$ 14$ , and if he wishes to make a profit of at least $\$ 300$ per month on sales of this game, how many games must he sell each month?

A) $30 \leq \mathrm { n } \leq 80$
B) $30 \leq n \leq 50$
C) $25 \leq \mathrm { n } \leq 40$
D) $25 \leq \mathrm { n } \leq 30$