On Monday, Mark ran 1 1/4 miles to school and then 2 1/5 miles to his grandmother's house after school. On Tuesday, he ran twice as much as the previous day. How far did Mark run on Tuesday? Write your answer as a mixed number.

What is the rule for reflection across the y axis

Ineed to know the answer to this algebra question.

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