Answer: Karina should check her records against her bank statement
Explanation:
It happens many times that we think we didn't do a transaction or we think we kept track of all records but in reality we missed a transaction, so it is better to double check or confront our expenses with a bank statement.
The answer is False
Explanation: The validity of a hypothesis needs to be proven for the research to be considered correct. All research must have good parameters, both valid and reliable, to be considered as real and serious research.
