Final answer:
To match the source or revenue or the other type of expense with the percentage of revenue/type of expense, you can use the given information as a reference.
Step-by-step explanation:
To match the source or revenue or the other type of expense with the percentage of revenue/type of expense, you need to use the given information as a reference. The statement 'total consumption is very nearly 100 qBtu' suggests that the total consumption is approximately 100%. Therefore, you can use this information to determine the percentage of each source or expense relative to the total consumption.
For example, if the percentage of a particular source is 20%, it means that this source contributes 20 qBtu out of the total 100 qBtu.
Similarly, if the percentage of a particular type of expense is 30%, it means that this expense accounts for 30% of the total revenue or income.