Help me plzzz ASAP T-T and it's Cyber Security three methods that are used to verify that data being inputted is accurate, and a brief explanation for how each works.

Freya realizes she does not have enough in her bank account to use the debit card. she decides to use a credit card instead. which questions should freya answer before using a credit card? check all that apply. can i pay at least the minimum payment each month? can i make payments on time and avoid late fees? will i have to take out a loan? how much in finance charges can i afford to pay? should i talk to a consumer credit counseling service?

Worth 50 points answer them bc i am not sure if i am wrong

Self contained sequences of actions to be performed are? a. expressions b. algorithms c. functions d. formulas