Emma has 26 for her weekend expenses. she spent 12.81, including tax, on a new book. additionally,
she spent $4.50 on lunch and $8.50 on a movie ticket.
To find out how much she has left, subtract the total amount she spent from her initial amount:
26 - (12.81 + 4.50 + 8.50) = 26 - 25.81 = $0.19
Therefore, Emma has $0.19 left for her weekend expenses.