Please answer in need help

A

Step-by-step explanation:

Perimeter = 4x² - 3 + 4x² - 2 + 4x² - 1   {add like terms}

                 = 4x² + 4x² + 4x² - 3 - 2 - 1

                 = 12x² - 6

If x = 1.5,

12x² - 6 = 12*(1.5)² - 6

             = 12* 2.25 - 6

             = 27.0 - 6

             = 21 inches

an

y = 6x -3y -12

y +3y +12 = 6x

=> . x = { 2y / 3 +2 } this is equation of line in terms of x

=> . if line meets the x-axis the co-ordinates of meeting point would be ( x , 0 )

=> . x = 2 ( 0 ) / 3 + 2

=> . x = 2

so, the point is ( 2 , 0 )