Mrs. conley asks her class what kind of party they want to have to celebrate their excellent behavior. out of all the students in the class, 555 want an ice cream party, 777 want a movie party, 101010 want a costume party, and the rest are undecided. if 20\%20%20, percent want an ice cream party, how many students are in the class?

The sat and act tests use very different grading scales. the sat math scores follow a normal distribution with mean 518 and standard deviation of 118. the act math scores follow a normal distribution with mean 20.7 and standard deviation of 5. suppose regan scores a 754 on the math portion of the sat. how much would her sister veronica need to score on the math portion of the act to meet or beat regan's score?