How do you solve k = -20

Write the slope-intercept form of the line that passes through the point (1, 0) and is parallel to x - y = 7. t

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%

What is the radius of a circle with an area of 78.5 cubic inches? use 3.14 for pie