PLZ help asap you toss a coin 3 times what is the probability of getting tails then heads then tails

Derricks dog sitting and darlene's dog sitting are competing for new business. the companies ran the ads shown.which dog sitting service is more economic to use if you need 5 hours of service? explain.

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

The parabola x= √y-9 opens: a.)up b.)down c.)right d.)left