Select all the correct answers.
a box company completed a study to determine the number of boxes an old machine would produce in an hour. they determined that the old machine produced 280 boxes in 4 hours.
during its first day of operation, a new machine, after running a full 8 hours, produced 56 more boxes than the old machine would have produced in that time.
which of the following is true about the new machine?
1: the equation y = 84x represents the production rate of the new machine.
2: the equation y = 77x represents the production rate of the new machine.
3: the new machine can produce 14 boxes an hour.
4: the new machine can produce 7 more boxes an hour than the old machine.