Some please help me I’m stressed out ill give out brainliest please don’t answer if you don’t know

Given right triangle xyz, which correctly describes the locations of the sides in relation to

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15

Which of the following describes the graph of y--4x-36 compared to the parent square root function? stretched by a factor of 2, reflected over the x-axis, and translated 9 units right stretched by a factor of 2, reflected over the x-axis, and translated 9 units left stretched by a factor of 2, reflected over the y-axis, and translated 9 units right stretched by a factor of 2, reflected over the y-axis, and translated 9 units left save and exit next submit