HELP TIMED QUESTION PLS

Simplify (7-3i)(8+4i)

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

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

Ihonestly have no clue if it's each or none.