Simplify the given expression. (4r - s) - (r + 2s) + (3r - s). a. 6r - 4s c. 8r b. 3r - 2s d. 6r - 3s

Fred has a total of 62 dvd and cd. if the number of cd is three more than two times the number of dvd, how many cd does he have?

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

Which number produces a rationale number when multiplied by 1/5