A local band spent ₱5 000.00 producing audio tapes of its last performance and will sell the tapes for ₱300.00 each. 4. Write a rule to describe the local band’s profit as a function of the number of tapes sold. 5. If the local band made a profit of ₱10 000.00, how many tapes did they sell? (Let P(x) be the local band’s profit in t tapes sold.) ​