11. In the diagrams below the rows of green tiles are surrounded by white tiles. Find a formula for the number of white tiles which would be needed to
surround a row of n green
Tiles

1d

2b

3 false

4 d

5 3200sq,ft

80+60+y=180

then divide the difference between 60 and y and add it to 180

so x =180 +( (y-60)/2)

x equals 200

step-by-step explanation:

8

the answer is y = 11.54

hope this : )

6mm^3 or .6cm^3

      216

      /   \

  36     6

  /   \     /

6     6   6

factor trees are nice.