In mathematics, r^n refers to raising a number r (the base) to an exponent n. It means multiplying r by itself n times.
Exponentiation: The process of raising a base to an exponent.
Power: A power is another term for an exponent and represents how many times the base should be multiplied by itself.
Base: The base is the number that gets raised to an exponent and determines what value will be multiplied repeatedly.