Wkrjdhgkdls q es congruentes?

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

Find the solution(s) to the system of equations. select all that apply y=x^2-1 y=2x-2

If np3 /nc2 = 6, find the value of n