$0. She got the $40 ring and then gave it back. 40-40=0.
In order to find the area, you multiply the width (7), height (6) and length (12). But the problem states that the height has changed from 6 to 6 minus3, which would be 3. So you multiply 3, 7, and 12.
Answer: 5/7 = 2/x x=4 m
Step-by-step explanation:
