HELP PLEASE Determine the solution to the following system of equations.

y = -2x2 + 4x + 8
y = -4x + 16

The number of fish in a lake can be modeled by the exponential regression equation y=14.08 x 2.08^x where x represents the year

This is about circle theorems. someone asap : (

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