Pls, help :c I don't understand this

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

Place the following steps in order to complete the square and solve the quadratic equation,

Christina can paint 420 square feet in 105 minutes. which unit rate describes the scenario?