In which step did Cyrus make an error?
7 7 (x - 1)² = 12
(x - 1)2 = 36 Step 1
I-1= 6
Step 2
I=7
Step 3

Abox contains 1 plain pencil and 4 pens. a second box contains 5 color pencils and 5 crayons. one item from each box is chosen at random. what is the probability that a plain pencil from the first box and a color pencil from the second box are selected? write your answer as a fraction in simplest form.

52 cm radius = diameter = area = circumference = circumfer

Suppose the equation ||x-a|-b|=2008 has 3 distinct real roots and a not =0. find the value of b.