Which of the following statements best describes the location of -(-1) on a number line? O It is 1 unit to the left of 0.
O It is 1 unit to the right of 0.
It is 1 unit to the right of 1.
It is 1 unit to the left of 1.

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?