What is six hundred eighty-four and seventy-one hundredths written as a number ​

Use the data on the dot plot to answer the question.how many people read for more than three hours last week? i'm on a unit test review

Finding tbe values of the variables in each kite

Due to bad planning, two of the local schools have their annual plays on the same weekend. while 457 people attend one, and 372 attend the other, only 104 people were able to attend both. how many people went to at least one play?