How do you solve this absolute value equation

The number of potato chips in a bag is normally distributed with a mean of 71 and a standard deviation of 2. approximately what percent of bags contain between 69 and 73 potato chips? approximately 68% approximately 71% approximately 95% approximately 99.7%

What is the value of x in the equation 2(x-4) = 4(2x + 1)?

Write the equation in logarithmic form m^x=n