Carrie has 140 coins. she has 10 times as many coins as she had las month. how many coins did carrie have las month?

Using the side-splitter theorem, daniel wrote a proportion for the segment formed by luke segment de. what is ec?

Which number line correctly shows 0.8 + 0.3?

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