-2=2+v/4help me please

Is δ pmr similar to δ smn ? if so, which postulate or theorem proves these two triangles are similar?

The highest point on earth is the peak of mount everest if you climb to the top you would be approximately 29,035 feet above sea level at remembering that amount is 5280 feet percentage of the height of the mountain would you have to climb to reach a point 2 miles above sea level

Solve each quadratic equation by factoring and using the zero product property. [tex]x^2+6x+8=0[/tex]