Answer:
The entries to record the transactions are given below.
a. Provide music lessons to students for $7,000 cash.
Debit Cash Asset              $ 7000
CreditService Revenue income  $ 7000
b. Purchase prepaid insurance to protect musical equipment over the next year for $3,000 cash.
Debit Prepaid Insurance equipment Asset $ 3000
Credit Cash Asset                      $ 3000
c. Purchase musical equipment for $10,000 cash.
Debit Equipment Asset   $ 10,000
Credit Cash Asset       $ 10,000
d. Obtain a loan from a bank by signing a note for $10,000
Debit Cash Asset       $ 10,000
Credit Notes payable   $ 10,000