Let n = 4.
what is the value of 7 • 6 + n • 2?
a.
50
b.
92
c.
98
d.
140

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?

What is negative 3/9 times negative 2/8 ?

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