Greta walked 10 blocks in a week (7 days). At this rate, how many blocks will Greta walk in 84 days?

What is the solution to the system of equations? (–2, –8) (–1, –5) (0, –2) (2, 4)

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%

Solve the equation: x - 9 = -6 + 5 a. 21 b. 7 c. 14 d. 2