### Joke... How Old Are Your Parents?

GDT has gotten some great quotes from the Weekly Teacher Tip Newsletter. From time-to-time, the newsletter has a joke that contains math.

```   Date: Sat, 20 Jan 2007 19:15:07 -0500
Subject: Tips for Teachers #342

Jokes You Can Tell in Class

A teacher said to her student, "William, if both of your
parents were born in 1976, how old are they now?"

After a few moments, William answered, "It depends."

"It depends on what?" she asked.

"It depends on whether you ask my father or my mother."
```
##### Exercises
1. Calculating the ages of William's parents also depends on `_________________________________________`.

2. List the prime factors for `1976`.

3. The Wikipedia says that during January of 1976, the "Cray-1 -- the first commercially developed supercomputer -- was released by Seymour Cray's Cray Research." The Cray-1 weighed `5.5 short tons`. The African elephant is the world's largest land animal and on average it weighs `15,400 pounds`.

No or Yes: The Cray-1 weighed more that the average weight of an African elephant.
[1 short ton = 2000 pound]

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 21 January 2007
``` + this was BAB #777 ```