The slope is 6.cuse the slope also means sometimes 6
Answer:
-5, -8, -11
Step-by-step explanation:
Common difference:

757 units squared. Here is work:
The y intercept is 0, and the slope is 5x.
Equation: y = 5x +0.
The average of the given base lengths is the length of the midsegment:
... (72 + 104)/2 = 176/2 = 88