Need help!! Evaluate. - 3x ^ 3 - 4x for x = - 1 . 07 0-1

Each cookie sells for $0.50 sam spent $90 on baking supplies and each cookie cost $0.25 to make how many cookies does sam need to sell before making a profit formula: sales> cost

If you can solve all of these i will give ! - 4% of 190 - 4% of 162.5 - 4% of 140 - a 4% increase from 155.1 - a 4% increase from 159.8

Factor and solve to find roots x squared -x - 90 =0