Will mark brainiest the dimensions of a rectangle are 8 1/2 cm by 6 3/10 cm. what is the area of the rectangle? a)14 4/5 cm2 b)29 3/5 cm2 c)48 11/20 cm2 d)53 11/20 cm2

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