Melody Inc. had a November ending cash balance of $$15,000.$ As well, it had sales of $$10,000$ in November, $$20,000$ in December, and projects sales of $$25,000$ for January, $$30,000$ for February, and $$35,000$ for March. The firm collects its receivables in the month after the sale. Given this information, calculate its cash balance at the end of March. Assume that every month has $30$ days.

$$75,000$

$$80,000$

$$90,000$

$$100,000$

$$110,000$