the first three terms of the sequence are -9 -7 -5 select the expression giving the nth term of the sequence n+2,n-2, 2n-9, 2n - 11

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{ {