A funicular train in the mountains rises 80 feet for every 150 feet it moves along the track. Find the angle of elevation of the track

which  best  describes the transformation from the graph of  f(x) =  x2  to the graph of  f(x) = (x  – 3)2  – 1?   left 3 units, down 1 unitleft 3 units, up 1 unitright 3 units, down 1 unit  right 3 units, up 1 unit

In angle pqr find the measure of

Could somebody me with this radical simplification?