Solve and prove the solution for the equation -2(1-4x)=3x+8.

Write an equation in point-slope form for the line through the given point that has the given slope (-2,-7); m=-3/2

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).

Find the perimeter of the triangle with vertices  d(3, 4),  e(8, 7), and  f(5, 9). do not round before calculating the perimeter. after calculating the perimeter, round your answer to the nearest tenth.