Answer:
20
Step-by-step explanation:
Im going to solve for 4 because I think that's what your asking for.
Think how 4 inches went to 10 inches
Think how 6 went to 15
[tex]4(?)=10\\6(?)=15\\?=2.5\\4(2)=8\\4(0.5)=2\\8+2=10[/tex]
By that rule...
[tex]8(2.5)=?\\?=20[/tex]
