Harold has been hired as a salesman. he is paid a flat rate of $375 each week and earns an additional $14.25 commission for each sale. if x represents the number of sales and y represents the total earned, which equation will harold determine the amount he earns in one week? (2 points) select one: a. y = $375h - $14.25 b. y = $375h + $14.25 c. y = $14.25h + $375 d. y = $14.25h - $375

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