What is 3x=5 a positive solution, negetive solution, zero solution, or no solution

Find the given elements if matrix d:

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

For f(x) = 3x+1 and g(x) = x2 - 6, find (g/f)(x)