Shaniqua has \( \$ 45 \) in her wallet. She spends \( \$ 4 \) on snacks and \( \$ 8 \) on a movie ticket. What integer represents the change in the amount of money in Shaniqua's wallet? How much money does she have left?

After spending \( \$ 4 \) on snacks and \( \$ 8 \) on a movie ticket, Shaniqua's total spending is \( 4 + 8 = 12 \) dollars. To find the change in the amount of money she has, we subtract her spending from her initial amount: \( 45 - 12 = 33 \). So, the integer representing the change in her wallet is \( -12 \) (indicating she has spent money), and she has \( \$ 33 \) left.