Couple different ways to approach this
If all sides are equal you would just add 4 twice, 72 + 8=80, now divide by 4, 20 is the length, width is 4 less than length so subtract 4, 16 is width, now add 2 lengths and 2 widths to double check, 20 + 20 + 16 + 16=72
Answer:
7/6
Step-by-step explanation:
You have correctly graphed the line, so you know that the rate of change is ...
∆d/∆t = 7/6
d changes by 7/6 units for each unit change in t.
The answer is b ok have fun