Answer:
13.7
Step-by-step explanation:
There are 4 per row.
12 divided by 3 = 4.
(6^-2)^2 = 1/1296 = 0.0007716049382716 hope this is what you were looking for. the math is right tho for (6^-2)^2 most calculators can do this easy just do 6^-2 then after just do ^2