Why can't I delete my history on. My phone

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?

If f(x) and g(x) are inverse functions of each other, which of the following shows the graph of f(g(x)

Heather is a cashier. she can ring up 1212 customers in 99 minutes. at this rate, how many minutes does it take her to ring up 44 customers?