Given the following question:
Point A = (7, 4) = (x1, y1)
Point B = (3, 6) = (x2, y2)
To find the slope use rise over run:

m = -0.5
The expression would be:
15-2x
Hope this helps!
-Benjamin
Ammoni - NH3
nitrification - conversion of ammonia to nitrates
Eutrophication - nutrient overload in the environment
Nitrogen gas - nitrogen fixers
Lightning and bacteria - unusable by most organisms
I hope this helps you, It was the best I could do!
(4-6i)(6-8i)
24-32i-36i+48i²
24 + -68i - 48
-24-68i
There’s literally no actual question so how could we help?