Which statement best explains the value of 16 − (−3)?
the additive inverse of −3 is −3, so 16 − (−3) = 19.
the additive inverse of −3 is −3, so 16 − (−3) = 13.
the additive inverse of −3 is +3, so 16 − (−3) = 19.
the additive inverse of −3 is +3, so 16 − (−3) = 13.

point a is located at negative 6 over 8 and point b is located at negative 1 over 8. what is the distance between points a and b?

negative 6 over 8 plus negative 1 over 8 = negative 7 over 8; therefore, the distance from a to b is absolute value of negative 7 over 8 equals negative 7 over 8 units

negative 6 over 8 plus negative 1 over 8 = negative 7 over 8; therefore, the distance from a to b is absolute value of negative 7 over 8 equals 7 over 8 units

negative 6 over 8 minus negative 1 over 8 = negative 5 over 8; therefore, the distance from a to b is absolute value of negative 5 over 8 equals negative 5 over 8 units

negative 6 over 8 minus negative 1 over 8 = negative 5 over 8; therefore, the distance from a to b is absolute value of negative 5 over 8 equals 5 over 8 units

why is 2 + (−3) equal to −1?
because it is 3 units to the left of 2 on a horizontal number line
because it is 3 units to the right of 0 on a horizontal number line
because it is 3 units to the left of 0 on a horizontal number line
because it is 3 units to the right of 2 on a horizontal number line