A concert promoter needs to make $64,200 from the sale of 1840 tickets. The promoter charges $30 for some tickets and $45 for the others. Let x represent the number of $30 tickets and y represent the number of $45 tickets.
(b) How much money is received from the sale of $30 tickets?
(c) How much money is received from the sale of $45 tickets?
(d) What is equation that states that the total amount received from the sale is $64,200?
(e) Solve the equations simultaneously to find how many tickets of each type must be sold to yield the $64,200.