The function f(x)=1/2x-6 was replaced with f(x+k)=1/2x-4. what is the value of k

To decrease an amount by 16% what single multiplier would you use

The length of time it takes to find a parking space at 9 a.m. follows a normal distribution with a mean of 5 minutes and a standard deviation of 2 minutes. find the probability that it takes at least 8 minutes to find a parking space. (round your answer to four decimal places.)

Explain how the quotient of powers was used to simplify this expression.