Please help.
Is algebra.
PLEASE HELP NO LINKS OR FILES.
I don't want links.

Describe the possible echelon forms of the standard matrix for a linear transformation t where t: set of real numbers is onto.

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

Write the pair of fractions as a pair of fractions with a common denominator