Jorge earned a 75% on his History test where the class mean was 70% with a standard deviation of 5.2. He also earned a 82% on Math test where the class average is 84% with a standard deviation of 2.7.
Find the Z-scores for each of Jorge's tests. In which class did he do better relative to his peers? How do you know?

Ben wants to play a carnival game that costs $2. in his pocket he has 5 red tickets worth 35 cents each, and 15 blue tickets worth 10 cents each. which of the following systems of inequalities correctly represents the constraints on the variables in this problem? let represent the red tickets and b represent the blue tickets.

How to write 3 tenths and 5 tenths as a decimal

What is the anwers for 9+2x=5x-3-x