Ashley's fish tank has 15 liters of water in it. she plans to add 4 liters per minute until the tank has at least 51 liters. what are the possible numbers of minutes ashley could add water? use t for the number of minutes.

Which compound inequality could be represented by the graph?

Find solution of the linear equation y = 2/3x + 1/3

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