Hannas income statement is as follows:

Sales (10,000 units). $117,000

Less variable costs - 68,000

Contribution margin $49,000

Less fixed costs - 36,000

Net income. $ 13,000

Using the data from above, create a variable cost graph for Hanna, at volumes of 5,000, 10,000 and 15,000 units?

Using the data from above, if Hannas fixed cost increased by 10%, what revenue number yields a profit of $18,000?