What's a² + 2a + 2 - a² + 5a?

Points a, b, and c form a triangle. complete the statements to prove that the sum of the interior angles of triangle abc is 180

1. writing an equation for an exponential function by 2. a piece of paper that is 0.6 millimeter thick is folded. write an equation for the thickness t of the paper in millimeters as a function of the number n of folds. the equation is t(n)= 3. enter an equation for the function that includes the points. (-2, 2/5) and (-1,2)

Find the solution of each of the following.