Answer:
this isn't really an answer but use desmos graphing calculator, its an app and a website it will give you the answer.
I'm pretty sure it is.
If i'm wrong, I'm truly sorry
Answer:
16
Step-by-step explanation:
<h3>
Answer:</h3>
He will need at least 122 tiles
<h3>
Step-by-step explanation:</h3>
Get the area of the tiles
5*14= 70 square inches per tile
Divide the floor area by the tile area
8,500/70
121.428571
Round up
122