What are 3 cities in afghanistan?

Which of the following is not critical in decision making? a. taking action independentlyb. considering internal factorsc. considering external factorsd. considering decision consequences

After his last drinking spree, fakim hid a half-empty liquor bottle. he couldn't remember where he hid it until he started drinking again. fakim's pattern of recall best illustrates:

What does the delta symbol represents in this equation