How can you use rational numbers to represent real world problems?

Which of the following is an equation of a line parallel to the equation y=4x+1?

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%

Use the equation and type the ordered-pairs. y = 2 ^x