Answer:
5
Explanation:
Calculate the slope , rate of change m using the slope formula
m =
with (x₁, y₁ ) = (8, 40) and (x₂, y₂ ) = (6, 30)
m = = = 5
Find the slope /rate of change using the following ordered pair:(8,40) and (6,30)
also
6300
8400
= B= 14056
4.4m questions
5.7m answers
= 
= 5