Need Help with Dax Calculations | Count Resolved Date only for MAX Week Numbers

Hi PaulJ185 

Assuming week is a measure

Resolved date with max week - Count = 
VAR _SummaryTable =
    SUMMARIZECOLUMNS (
        'Table'[Resolved Date],
        "@week", CALCULATE ( SUM ( 'Table'[Week] ) )
    )
VAR _Max =
    MAXX ( _SummaryTable, [@week] )
RETURN
COUNTROWS ( FILTER ( _SummaryTable, [@week] = _Max ) )

Resolved date with max week = 
VAR _SummaryTable =
    SUMMARIZECOLUMNS (
        'Table'[Resolved Date],
        "@week", CALCULATE ( SUM ( 'Table'[Week] ) )
    )
VAR _Max =
    MAXX ( _SummaryTable, [@week] )
RETURN
MAXX ( FILTER ( _SummaryTable, [@week] = _Max ), [Resolved Date] )