How to go from fraction to a decimal

Which of the following represents a number squared is equal to twenty more than nine times that number ? a) x squared = 9x + 20 b) x squared = 20x + 9 c) x squared > 9 + 20x d) x squared = 9 + x + 20

Identify the graph of y = ln x + 1.

Find an bif a = {3, 6, 9, 12) and b = {2, 4, 6, 8, 10).