Ashley is selling cupcakes. it costs her $3 each week to advertise her cupcakes. it costs her $0.20 to make each cupcake, and she sells them for $1.00 each. write an equation to model the amount of profit, p, she makes from selling x cupcakes in one week. p = x − 3 p = 0.20x + 3 p = 0.8x − 3 p = 3x + 0.8