Ahippopotamus can run at the speed of about 24.9 miles per hour. at this rate, how far can the hippo run in 30 minutes?

In the rectangle below ac=30 units what is de

2.5 milligrams is equivalent to how many grams

Ur environment is very sensitive to the amount of ozone in the upper atmosphere. the level of ozone normally found is 4.04.0 parts/million (ppm). a researcher believes that the current ozone level is not at a normal level. the mean of 2525 samples is 4.44.4 ppm with a standard deviation of 0.80.8. assume the population is normally distributed. a level of significance of 0.020.02 will be used. make the decision to reject or fail to reject the null hypothesis. answer tables