Simple or compound 2

1) It is very hot in the afternoon. (simple sentence)

2) I'm leaving now but I will be back in an hours time. (compound sentence)

3) Dad took out a thousand rupees note and gave it to the cashier. (simple sentence)

4) The fishermen went out in the morning and came back with a lot of fish. (simple sentence)

5) Tom said goodbye to everyone. (simple sentence)

Have I classified the sentences correctly?

Thanks.