22(10p - 79) if p = 9 and q = 2

The water has been on the stove y=9.5x+62.1 after how many minutes will the tempature be 138.1 f

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

Math question.. plz me .. best answer all