I need help with 1,2 and 3 please and thank you.

You and several classmates are studying for the next accounting exam. They ask you to answer the following questions. 1. If cash is borrowed on a \\( \\$ 90,000,9 \\)-month, \6 note on August 1 , how much interest expense would be incurred by December 31 ? Interest expense 2. The cash register total including sales taxes is \\( \\$ 21,840 \\), and the sales tax rate is \4. What is the sales taxes payable? Sales taxes payable 3. If \\( \\$ 60,000 \\) is collected in advance on November 1 for 6 -month magazine subscriptions, what amount of subscription revenue should be recognized on December 31 ? Subscription revenue