Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Circuit | City / State | Date | Winner | Team |
| --- | --- | --- | --- | --- |
| Mallala Motor Sport Park | Mallala , South Australia | 7 May | Mark McLaughlin | Elfin Sports Cars |
| Mallala Motor Sport Park | Mallala , South Australia | 7 May | Rohan Onslow | R.J.Macarthur Onslow |
| Winton Motor Raceway | Benalla , Victoria | 4 June | Rohan Onslow | R.J.Macarthur Onslow |
| Winton Motor Raceway | Benalla , Victoria | 4 June | John Briggs | John Briggs |
| Oran Park Raceway | Sydney , New South Wales | 4 August | Rohan Onslow | R.J.Macarthur Onslow |
| Oran Park Raceway | Sydney , New South Wales | 4 August | Rohan Onslow | R.J.Macarthur Onslow |
| Amaroo Park | Sydney , New South Wales | 20 August | Neil Crompton | Boylan Racing |
| Amaroo Park | Sydney , New South Wales | 20 August | Simon Kane | Clive Kane Photography |
| Sandown International Raceway | Melbourne , Victoria | 9 October | Sam Astuti | Cascone Corporation |
| Sandown International Raceway | Melbourne , Victoria | 9 October | Neil Crompton | Boylan Racing |
Question:
What is Date, when City / State is "Mallala , South Australia", and when Team is "R.J.MacArthur Onslow"?
Answer:
7 May