Use rough and ready in a sentence?

Answer 1

• on the cutting edge
• on the edge of your seat
• take the edge off
• be on edge
• have an edge over (meaning an advantage over)
• live life on the edge
• to be on the edge
• go over the edge

Answer 2

Roughly:

1. Roughly 20 defective computers were sold by mistake.
2. Many people roughly struggle to make ends meet.
   
3. The tourists and their guide had to climb the roughly large rocks.

Answer 3

I also felt pretty rough, i think ive had a bit of a cold.