How is the best way to understand probability?

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

When 142 is added to a number the result is 64 more then 3 times the number. option 35 37 39 41

3x + 4y = 5 x- 3y = -7 solve by substitution