If a line has a slope of 2 and contains the point (-2, 1), what is its equation in point-slope form?
a. y - 1 = 2(x - 2)
b. y - 1 = 2(x + 2)
c. y + 2 = -2(x - 1)
d. y - 2 = -2(x - 1)

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

How do i do this activity, is appreciated

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%