Mr Alade has 975 rolls of lace material in his store. If he sells one roll for 8,640 naira, how much did he realise on this sale?

To calculate the total amount realized from the sale of 975 rolls of lace material at 8,640 naira per roll, multiply the number of rolls by the selling price per roll.

Total amount realized = 975 rolls * 8,640 naira/roll
Total amount realized = 8,424,000 naira. Answer: \boxed{8,424,000}.

To find out how much Mr Alade realized on this sale, we can multiply the number of rolls sold by the price per roll.

Number of rolls sold = 1 roll
Price per roll = 8,640 naira

To calculate the total amount realized, we multiply the number of rolls sold by the price per roll:

Total amount realized = Number of rolls sold x Price per roll

Total amount realized = 1 roll x 8,640 naira = 8,640 naira

Therefore, Mr Alade realized 8,640 naira on this sale.

To calculate the total amount Mr Alade realized on this sale, you would multiply the number of rolls sold by the price per roll.

The number of rolls sold is 1.

The price per roll is 8,640 naira.

So, the total amount Mr Alade realized on this sale is 1 * 8,640 = 8,640 naira.