Answer:
5 hours
Step-by-step explanation:
Mark recieves 3mg per hour. This can be rewritten as y=3x. Cassie recieves 2x+5. To solve, use substitiution. 3x=2x+5. To solve, subtract "2x" from "3x." You then get x=5.
You have to times it by 100 - however much you want to decrease it by so your multiplier would 0.38
If height isn't defined/given you do the equation - h=A
/b
If base isn't defined/given you do the equation - b=A
/h
A=Area
B=Base
H=Height
-3x+6 follow me on instagram : imrajsingh