A charity organization sells two types of merchandise to raise funds: small keychains and large mugs. The equation represents the total amount of money, , in dollars, raised from selling small keychains and large mugs. Which of the following statements must be true based on this equation?
The total amount of money raised is
Each large mug sells for
The number of small keychains sold is 15.
The total number of items sold is 40.
