12. What is the equation in slope - intercept form of the line that passes
through (1,5) and is parallel to
the line represented by Y: 7:1X+8,3?
A. y=-2. 1x + 2.9
By' =-2.1X+2.1.
IC - y = 2.1X+2.9
D. y=2.1X + 2.1

Really need on these. i have no idea what to do

Given: lines a and b are parallel and line c is a transversal. prove: 2 is supplementary to 8 what is the missing reason in the proof? statement reason 1. a || b, is a transv 1. given 2. ∠6 ≅ ∠2 2. ? 3. m∠6 = m∠2 3. def. of congruent 4. ∠6 is supp. to ∠8 4. def. of linear pair 5. ∠2 is supp. to ∠8 5. congruent supplements theorem corresponding angles theorem alternate interior angles theorem vertical angles theorem alternate exterior angles theorem

If f(x)=x+7 and g(x)=1/x what is (fog)(x)