Aliens!

Captured by Aliens!

Poor Mrs. Frier never saw them coming though she weirdly thought she heard a piano...... Can you organize the rescue before your math class becomes the tales of old.  She believes you can find her before it's too late.

A nearby witness gave a description of the suspect to a sketch artist, and thought Jangle said: 

Where did I put the keys? gee oh oh dot gee el slash eff oh ar em ess slash tee EFF el ex four you el EN nine two cue ess one ZED ee ar two

Mrs. Frier is bored though.  She happened to have math tiles, elastics and skewers in her bag. (They wouldn't let her do marking - Math is math they said, and numbers are powerful). The aliens thought she was just being crafty.  She was doing math though! Ha! She made 2 hyperboloids.  She made 6 cases of each of the following patterns: y=3x+4, y=4x+1.  Jangle asked what she was doing.  She said "Just middling about.". 

Mrs Frier also left a trail of six cards (the Alien didn't notice paper - just thinks humans are messy).  

The security came around on a somewhat random schedule.  She timed them at 7, 6, 9, 7, 10, 5, 5, 5, 6, 8, 8, 8, 8, 15 and 10 minutes.  How long do you have to break her out between passes?  

The keypad to the cell looks like this:

The correct numbers have to be entered row by row (left to right) to unlock it.  Mrs Frier could see the first number was a 7, and the last number a 2, but no digit is used twice. 


There will be one last guard....   

Mrs. Frier thinks your awesome skills can find her and rescue her before it is too late.