A line with the equation y=2x+3 is dilated with the center of the dilation at the origin and a scale factor of 6. Ava believes the equation of the image line will be y=12x+4 while her friend Sarena believes the equation is y=2x+18. Is one of them correct? If so, who is it and why? If not, why are they both wrong?

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