Lin has two small baking pans, each shaped like a rectangular prism. For each question, explain or show your reasoning. Lin lines the bottom of her first pan with aluminum foil. The area of the rectangular piece of foil is 8¼ square in. Its length is 3½ inches. What is the width if the foil?
Show your reasoning.

Write an expression that has three terms and simplifies to 4x - 7. identify the coefficient(s) and constant(s) in your expression

The number if marbles of different colors stored in a hat is listed below: 4 red marbles 10 green marbles 7 blue marbles. without looking in the hat, dan takes out a marble at random. he replaces the marble and then takes out another marble from the hat. what is the probability that dan takes out a blue marble in both draws?

Lucy is a dress maker. she sews \dfrac47 7 4 of a dress in \dfrac34 4 3 hour. lucy sews at a constant rate. at this rate, how many dresses does lucy sew in one hour? include fractions of dresses if applicable