What is the value of x in the equation 3(2x + 4) = –6? (4 points) –3 1 12 19 3. the steps below show the incomplete solution to find the value of x for the equation 5x –2x –3 = –2 + 15: step 1: 5x –2x –3 = –2 + 15 step 2: 5x –2x –3 = 13 step 3: 3x –3 = 13 which of these is most likely the next step? (4 points) 3x = 16 3x = 10 3x = 39 3x = 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