Directions: These questions are based on the following information.
If 'A × B' means 'A is mother of B' .
If 'A ÷ B' means 'A is brother of B'.
If 'A + B' means 'A is son of B'.
If 'A - B' means 'A is wife of B'.
In R × H + D, how is R related to D?