Evaluate the following expression: 2^3

A number raised to a power is equivalent to a number multiplied to itself by the number equal to the power times. In this case, the base number is 2 and the power is equal to 3. so we multiply 2 to itself 3 times equal to 2 * 2 * 2 equal to 8. This is also verified using calculator.

The answer is "a"radius = 12.7 unitsdiameter = radius × 212.7 units × 2 = 25.4 units