21. Jesse saved his allowance all summer to by a wake board. He put $36.50 in his piggy bank every two weeks for 3 months. He spent ΒΌ of his money on a tow rope and bathing suit. Then he spent $14.25 on lunch for him and his friend. He had just enough to buy the wake board. How much did the wake board cost? Please show all of your work as you solve.