G(x)=-4+7 rate of change

So me with this math problem. find the value of x the table shows the masses of 50 eggs. mass: 40-44 eggs: 6 mass: 45-49 eggs: x mass: 50-54 eggs: 12 mass: 55-59 eggs: 10 mass: 60-64 eggs: 7 mass: 65-69 eggs: 2 you!

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

What are the exclude value of mn+3m