Help me find R and S and explain for me pls

Complete the standard form of the equation that represents the quadratic relationship displayed above, where a, b, and c are rational numbers.

Gail is making costumes for a school play. each rabbit costume needs one and one half yards of white fur fabric, a yard of blue striped fabric, and a quarter of a yard of pink felt for the ears. g? ail needs to make eight rabbit man yards will she need, for the white fur fabric, blue striped fabric, and pink felt?

What expression is equivalent to (2x-1)(x-3)?