Respuesta :

To start you off:
You know how long it takes Johnny to type a 2100 essay. You don't know how long for a 600 word essay.

First, find how the rate that Johnny types. For example, you could find out how fast Johnny types in 1 minute instead of 8
morganbearrr
600/8=300/4
300/4•7=2,100/28
So it would take him 28 mins