Help please i need them both answered

Two rigid transformations are used to map abc to qrs. the first is a translation of vertex b to vertex r. what is the second transformation? a reflection across the line containing ab a rotation about point b a reflection across the line containing cb a rotation about point c

What is the missing constant term in the perfect square that starts with x^2 -20x

What are the solutions to the equation 4x2+3x=24-x