A hotel has 30 single and 130 double rooms.

On Saturday 15 July, 256 customers stayed overnight at the hotel, with 85% room occupancy, and on Sunday 16 July, 144 guests stayed overnight, with 55% room occupancy.

The average price per customer on Saturday 15 July was 63, while the average price per customer on Sunday 16 July was 67.

Based on the above data, calculate separately for Saturday 15 July and for Sunday 16 July, the following: a) The customers per rental room, b) The occupancy of beds, c) The revenue of overnight stays, d) The average price per available room, e) The number of rented rooms.