Please help me answer the following question

this is a business analytics course mos 2298

thanks

in the top 20% (80th Alex has been studying for the certified management exam. Results from the last exam indicate that the mean was 83 with a standard deviation of 5. He needs to percentile) to pass. Use z value with two decimal places, 1.28, in your calculations. What score will place Alex in the top 20% of the distribution? Multiple Choice 89.40 O O 79.68 O 83.12 O 79.28