Hello, Edit: here's my work. Could anyone tell me what I'm missing?: Stem: C=cost of cupcake D=cost of doughnut 1C + 1D = 6. What is qty of D? Statement 1: 2D = 3C - 0.10 multiply both sides by 10 to get rid of the fraction: 20D = 30C - 1 Divide both sides by 20: D=3/2C - 1/20 Multiply 3/2 by 10 to ...