You work on the 60th floor of 100 story building. you walk into your office and find a bomb sitting on your desk. it reads 90 seconds and is counting down. what do you do?

Depends how strong the bomb is. If the bomb is weak then you would most likely go up 20-30 floors. If the bomb is in the middle go to the stair case and prepare for impact. If the bomb is strong go down 40 floors if possible. If none of this is possible to do and you don't know what to do about it then you must do the following:

Cut all of the wires in the bomb. Get the bomb near of a wall or a window. If it is a window then throw the bomb out of the window. If it is a wall put it as close to the wall as possible gather all your coworkers and run off of the floor.                                                                                 
 
    Hope this helps!

By actual division you should go down in 54 seconds to survive
If u go up the bomb might explode if it is stronger

If jon had $4.00 then takes away $2.25, then he should have $1.75 left. $4.00 - $2.25 = $1.75 hope this ; )