Kenneth has the following financial resources, assets, and liabilities: $$6900$ Mazda Miata; $$5175$ in computer equipment; $$13800$ in earnings; $$3450$ in credit card bills; and $$1725$ in student loans. What is Kenneth's net worth?

$$ $$25875$

$$ $$20700$

$$ $$6900$

$$ $$12075$