Answer:
The answer is option C i.e; y=0.9x-45
Step-by-step explanation:
When you substitute the values of x you have to get same values as given in the table
For example: substitute x=50 in the equation y=0.9x-45
Y= 0.9(50)-45
Y= 45-45
Y=0
Maybe f(a) = 0.5b?
But it's not in terms of a.
Simplify the equation:
-4a = -2b
a = 0.5b
Idk what next...
0.86
Wall = A=
3
