What's 83.42 rounded to the nearest cent?

Me asap on # : explain how factoring a trinomial, ax^2+ bx+ c, when a does not equal 1 different from factoring a trinomial when a = 1.

The table showed price paid per concert ticket on a popular online auction site. what was the average price paid per ticket

Which represents the number of times all outcomes less than a given outcome occur? cumulative frequency relative frequency frequency cumulative relative frequency