Diego and Bradley began arguing about who did better on their tests, but they couldn't decide who did better given that they took different tests. Diego took a test in Math and earned a 73, and Bradley took a test in Social Studies and earned a 60.8. Use the fact that all the students' test grades in the Math class had a mean of 73.2 and a standard deviation of 11.8, and all the students' test grades in Social Studies had a mean of 64.4 and a standard deviation of 10.4 to answer the following questions. a. Calculate the Z-score for Isaac's test grade.
b. Calculate the 2-score for lan's test grade.
c. Which person did relatively better?

Sir issac Newton os best

First, think of what you know. you know that the number t the end of the equation will need to be subtracted because it is the money he lost from buying the lawn mower. and your first two weeks have negative profit, so that tells you that c and d are wrong. now you can plug any of the weeks into a and b to see which one works. i'll start with plugging week 1 into a.this isn't right because it says your answer for week one should be -90.so now we need to try the same thing with b.this one got you the right answer, (sometimes if you only check with one of the weeks multiple will work so you need to check with more of the weeks, but it worked out fine here)this means that b is the correct answer.let me know if you need more clarification. i hope this : )