What is the answer to this question x²-2x+1=0

Describe the possible echelon forms of the standard matrix for a linear transformation t where t: set of real numbers is onto.

Under normal conditions, 1.5 feet of snow will melt into 2 inches of water. during a winter season high in the mountains, 301 feet of snow fell. how many inches of water will there be when the snow melts?

If the measure of angle 1 is 110 degrees and the measure of angle 3 is (2 x+10 degree), what is the value of x?