Answer:
-14.83
Step-by-step explanation:
X<264/203
A good site to use for problems like this is Wolfram Alpha, just google it and it should show up!
You can use for example

. I have graphed it there : <u>https://www.desmos.com/calculator/othuxmqqyj
</u>A and B : f is always decreasing except in 4 where it is not defined
C,D :
You’ll need 1197 inches of paper
Top left:
7x-44 = 4x+4
7x-4x = 4+44
3x = 48
x = 16
8y-43 = 39+(7(16)-44)
8y = 39+68+43
8y = 150
y = 18.75