John borrow $6.50 from his friends to pay for snacks and $11.75 from his sister to go to the movies. how much money does he need to repay

Do 6.50+11.75 that will tell you the answer Answer is 18.25

$18.25 because you will add $6.50 to the $11.75

Skew lines(segments) are lines(segments) in 3 dimensions that do not intersect the given segment and are not parallel to it.  ae, bf, eg, and fh are your skew segments.  i hope that : )

The answe may be c