100% of 10 is 10 meaning each layer increases 19 more than previous value.
1st layer=10
2nd layer= 20
3rd layer= 30
4th layer= 40
The forth layer contain 40 tiles
Answer:
80
Step-by-step explanation:
if you take 10 + 100% of that then its 20 and 100% of that is 20 so now its 40 + 100% now its 80
1 layer 10
2 layer 20
3 layer 40
4 layer 80
