18 ÷ 3 × -2 ÷ (-7 – -9)

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{ {

Enter the amplitude of the function. f(x)=3cosx

What is the positive solution to the equation 0 = -x2 + 2x + 12quadratic formula: x = -b/b²-4ac0-2+5202-20 ite10-1+2