How long does it take to get a doctorate in math education?

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

Solve each quadratic equation by factoring and using the zero product property. 10x + 6 = -2x^2 -2

Aline has a slope of negative 1/4 the past two points -5/4 and 1 what is the equation of the line