What is the result when 6x3 + 9x2 + 11x + 4 is divided by 2x + 1?

Aman steps out of a plane at a height of 4,000m above the ground falls 2,000m very quickly and then opens his parachute and slowly falls the remaining 2000m to the ground what height above the ground would be the best choice for a reference point

A. 127 cm^2 b. 144.5 cm^2 c. 172 cm^2 d. 50 cm^2

Is triangle jkl congruent to triangle rst? if so, what is the scale factor?