Determine which system below will produce infinitely many solutions. (2 points) 1) -4x + 6y = 20        4x - 3y = -2 2) -2x + 4y = 18          4x - 8y = -36 3) 3x - 2y = 5              -6x - 4y = -10 4) 5x - 3y = 12            15x - 9y = 24

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{ {