What is 89.892 rounded tk the nearest tenth

1. what are the missing reasons in the proof 2. it's in the second picture and 3

What is the equation of a line passing through the point (6,1) and parallel to the line whose equation 3x=2y+4

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