Multiply the second equation by 3: $ 9x + 6y = 54.90 $. Subtract the first equation: $ (9x + 6y) - (4x + 6y) = 54.90 - 32.40 $, yielding $ 5x = 22.50 $. Thus, $ x = 4.50 $ dollars, or $ \boxed450 $ cents. - Veritas Home Health