There are expected to be 7 adults for every 3 children at the opening of a new museum. Find how many children are expected if there are 21​ adults, 35​ adults, and 56 adults. How many children are expected if there are 21​ adults?

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

Hi, can anyone show me how to do this problem? 100 points for this. in advance

What is 100,000 times 1/100,000, using the standard method of multiplication? write the answer as 10 to a power.