The company Fl$$sar og Parquet produces high$-$quality tiles. In $2022,$ the estimated purchase of material was $50,000$ kg$,$ which cost $100$ ISK. per kilo.

Actual purchase and use of material was $55,000$ kg$.$ which cost $95$ ISK. per kilo. Estimated production was $40,000$ tiles, but actual production was $43,000$ tiles. Answer $4$ questions on Canvas. $1.$ How many kg of clay are needed for each tile according to the plans? $2.$ What is the raw material utilization variance? $3.$ If the planned production had been $45,000$ tiles, what would have been the planned raw material variance? $4.$ If the estimated production had been $45,000$ tiles, what would have been the raw material price variance?