Rewrite 1/2 * 1/2 as an exponential expression with a base of 2.

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

Using only the digits 5, 6, 7, 8, how many different three digit numbers can be formed if no digit is repeated in a number?

Is the response to the survey question "did you smoke in the last week question mark "response to the survey question "did you smoke in the last week? " a discrete random variable, a continuous random variable, or not a random variable?