Answer:
The width of the banner is 4 inch and the length of the banner is 28 inch
Explanation:
Given
Length is seven times its width
Let the width be "X", then length would be 7X
The banner is of rectangular shape.
Its area is 112 square inches
![X* 7X = 112\\7X^2 = 112\\X^2 = 16\\X = 4](https://img.qammunity.org/2022/formulas/mathematics/high-school/o8n1z5wg2400je9s81k42qe1r7ylg1jqzo.png)
Hence, the width of the banner is 4 inch and the length of the banner is 4*7 i.2 28 inch