B. it’s the change in y over the change in x
It is called Ecological Succesion hope that helped:)
Answer:
a) 
b) what?
c) -70
Step-by-step explanation:
If you have any questions feel free to ask in the comments - Mark
sorry for the terrible answer
Step-by-step explanation:
18h=252
9h=?(x)
9×252=18x
2268=18x
2268/18=x
x=126
Answer:
.5
Step-by-step explanation: