Inverse Trig (Common Angles)

Aline passes through 3,7 and 6,9 what equation represents the line

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%

For the inequality |c| < |d| to be true, which of the following must be true?