Solve the system of equations. –6x + y = –21 2x − 1 3 y = 7 What is the solution to the system of equations?
A.(3, 3)
B.(2, –9)
C. infinitely many solutions
D. no solutions

Astandard american eskimo dog has a mean weight of 30 pounds with a standard deviation of 2 pounds. assuming the weights of standard eskimo dogs are normally distributed, what range of weights would 99.7% of the dogs have? approximately 26–34 pounds approximately 24–36 pounds approximately 28–32 pounds approximately 29–31 pounds