Write an equation in point-slope form of the line that passes through the given point and with the given slope (-5,4); m=7

If g(x) = x+1/ x-2 and h (x) =4 - x , what is the value of ( g*h) (-3)?

What is the result of adding the system of equations? 2x+y=4 3x-y=6

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.