Solving system equations
y=5
x=-2y+56

If a suspect is in possession of 20 grams of cocaine how many ounces does he possess what will the charge be

Ashley spent half of her lunch money on a turkey sandwich. then she spent two-thirds of the money she had left on a bottle of juice and the rest of the money on a cookie. if the cookie cost $.75, how much lunch money did ashley have to start with?

30 points if you answer all 3 questions with work!