Which algebraic rule describes the transformation? a) (x, y) → (x + 1, y − 3) b) (x, y) → (x + 3, y − 1) c) (x, y) → (x − 1, y + 3) d) (x, y) → (x − 3, y + 1)

The amount spent on food and drink by 20 customers is shown below what is the modal amount spent and the median amount spent? 40 25 8 36 18 15 24 27 43 9 12 19 22 34 31 20 26 19 17 28