**Answer:**

B.4

**Step-by-step explanation:**

I did 12 divided by 3 = 4

**Answer:**

A normal distribution with a mean of 0 and a standard deviation of 1 is called a standard normal distribution.

9514 1404 393

**Answer:**

A- Cai are used an invalid reason to justify the congruence of a pair of sides or angles.

**Step-by-step explanation:**

In step 4, Cai referred to the angles as "alternate interior." In fact, they are "corresponding." **The reason used to justify congruence of the angles was invalid**.

I don’t think somebody is going to do every question