Find the value of x and y and show all work

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

Find the distance between the pair of points a(-1,8) and b(-8,4)

Find the amplitude of a sinusoidal function that models this temperature variation