CamScanner app is helpful for that
Answer:
Layer 4
Explanation:
MAC address works at the data link layer (layer 2) of the OSI model. Mac address allows computers to uniquely identify themselves in the network
IP Address is a logical address that works at the network layer of OSI model (layer 3) (actually the IP layer of TCP/IP model).
The port number works at the transport layer of the OSI model (layer 4).The port number uses sequence number to send segments to the correct application thereby ensuring they arrive in the correct order.
The difference ($2.30) could be due to a fee for an ATM withdrawal, a math error, writing in the wrong amount
