I think 45° Sana makatulong
The tree is 7.5ft because it's shadow is half it's height.
6 + 8x = 30
Problem written out
8x = 24
Subtracted 6 to get 8x alone
x = 3
Divided 8 to get your answer!
Mult

div

baseically, x is the base, and m and n are bases
you can only use this property if bases are same
baseically
multiply means add powers
divide means subtract bottom power from top
There’s are ratio which would be 8/10. 12/x should equally 8/10. So it would be 14 tiles long.