Help me out here on this question please.

Which expression is equivalent to 2x^2+7x+4?

()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

Write an expression that has three terms and simplifies to 4x - 7. identify the coefficient(s) and constant(s) in your expression