How do you use a number line to solve 58+19

Plz determine whether the polynomial is a difference of squares and if it is, factor it. y2 – 196 is a difference of squares: (y + 14)2 is a difference of squares: (y – 14)2 is a difference of squares: (y + 14)(y – 14) is not a difference of squares

How do the number line graphs of the solutions sets of -23 > x and x-23 differ?

Can someone me find the original price? the discount is 5% and the sale price is $68.40