Line l has a slope of 98. the line through which of the following pair of points is perpendicular to l? a. (−9,−,3) b. (9,−−6,6) c. (−5,−,3) d. (3,−−6,3)

15. jiovanni is looking in to two different companies that offer study guides for math exams.test prep 101 charges a $5 flat fee and an additional $0.25 per problem.math charges a $2 flat fee and an additional $0.50 per problem.how many prablems would make the costs of the two companies be equal? varibles: equations/eniqualities{ {