Hasan plans to choose a book from a section of the store where everything is 25% off. He writes the expression d−0.25d to find the sale price of the book if the original price is d dollars. Bella correctly writes another expression, 0.75d, that will also find the sale price of the book if the original price is d dollars.

Use the drop-down menus to explain what each part of Hasan's and Bella's expressions mean.

I NEED BELLA'S PART