To answer this easily, you must translate it into algebra. First you know that x + y = 54. But you want the whole thing in terms of one variable. The second line lets you do that. The dog has 5 times as much as the guy. Now, if the guy has x dollars, that means the dog has (equals) 5x. Put them together and you have a useful equation. x(guy) + 5x(dog) = 54. Or, 6x = 54. That means x = 9. If you picked choice (C), you stopped here, at a partial answer, but you weren't done yet. Now, the guy has x dollars, but the dog has 5 times x, or 5 times 9, or $45.
