Based on the order of operations, which shows the first step in simplifying this expression? 16/2+6(7+4x5)

The step function g(x) is defined as shown.what is the range of g(x)? ***answer choices in picture.

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

Ratio of circumference to diameter example plz i need to now what it looks like.