Solve for x, and find the measure of

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

Which number line correctly shows 0.8 + 0.3?

Suppose you are choosing a 6-digit personal access code. this code is made up of 4 digits chosen from 1 to 9, followed by 2 letters chosen from a to z. any of these digits or letters can be repeated. find the total number of personal access codes that can be formed. 492,804 341,172 39,917,124 4,435,236