Which expressions represent the distance between the two points?

choose all answers that are correct.

the number line shows two points with coordinates negative 11 and positive 7.

a.
|–11 – 7|

b.
|–11 + 7|

c.
|7 – (–11)|

d.
–11 – 7

1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution. a. what percent of the refunds are more than $3,000? b. what percent of the refunds are more than $3,000 but less than $4,000? c. what percent of the refunds are less than $2,000?