Answer:
Quinn did not make a mistake. This is because everything she did is correct and also if we calculate the expression without doing anything she did, we see that she has the right answer.
300 tamales is what i got
let me know if its wrong
6(2(5)-4)= 6(10-4)= 6(6)=36 so your answer is 36
2 gallons... dude just divide by 2, are you sure this is high school math?