Okay to split a segment in half you just need to find the midpoint of the two endpoints. Mathematically this is just the average of the coordinates of the endpoints which is:
mp=((x1+x2)/2, (y1+y2)/2)
Which in this case is:
mp=((-2+3)/2, (4+7)/2)
mp=(1/2, 11/2)
mp=(0.5, 5.5)
So the x-coordinate by itself is just 0.5, or answer c.
F(x) is f(x)=30x+40
g(x) is g(x)=35x+5
last twi answers are
250$ to deliver 7 cubic yards of pea stone
Where is the question? Are you playing solitaire