TechWiz Electronics makes a profit of 35 dollars for each MP3 player sold and 18 dollars for each DVD player sold. Last week, TechWiz sold a combined total of 105 MP3 and DVD players.

Let x be the number of MP3 players TechWiz sold last week. Write an expression for the combined total profit TechWiz made from MP3 and DVD players last week.

Let x be the number of MP3 players TechWiz sold last week. Write an expression for the combined total profit TechWiz made from MP3 and DVD players last week.