Need help on this one problem plz!​

What is the sum of these mixed numbers 2 1/8 + 4 3/8

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

Solve this equation using substitution. {4x + y = −2} {4x + 6y = 44}