Which of the following is not a polynomial?

a) 2 + s
b) x^2 - √x + 2
c) y
d) 4x^3 + y

()1. how do you find range? 2.the following set of data is to be organized into a histogram. if there are to be five intervals on the graph, what should the length of each interval be? 30, 34, 23, 21, 27, 25, 29, 29, 25, 23, 32, 31

The sales totals at macy's food store have increased exponentially over the months. which of these best shows the sales in the first three months?

The train station clock runs too fast and gains 5 minutes every 10 days. how many minutes and seconds will it have gained at the end of 9 days?