bearing in mind that the slope goes by several names
average rate of change
rate of change
rise over run
deltaY over deltaX
however, is the same cat disguised with a different costume.

It is 54 for 1 and 2 is 2520 you multply the lenght by the whith and divide by 2
Answer:
101in
Step-by-step explanation:
9*5=45
9*4=36
5*4=20
45+36+20=101