Approximately 65,409 people took a vacation to a state park 50 years ago. Last year 780,456,888 people vacationed to the same state park. Approximately how many more people visited the park than 50 years ago?

Somone me i want to know what 18 hours out of 24 hours in a fraction

Which of the following would be a good name for the function that takes the weight of a box and returns the energy needed to lift it?

Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.