What are the values of the function y= 3x - 4 for x = 0,1,2, and 3?

The amount spent on food and drink by 20 customers is shown below what is the modal amount spent ?

These tables represent a quadratic function with a vertex at (0, -1). what is the average rate of change for the interval from x = 9 to x = 10?

In a sale there is 25% of all prices a chair costs £45 in sale how much was it before the sale