Answer:
y*y*y*y*y*y
Step-by-step explanation:

My answer would be to add 3 to both sides
Answer:
96
Step-by-step explanation:
herp derp herp derp herp derp
Answer:
Triangle DEF is not a right triangle ; possible lengths are 20 & 15
Step-by-step explanation:
For right triangle;
the sum of the square of the two adjacent sides must equal the square of the hypotenus.
Therefore, (6^2)+(11^2)≠(13^2).
the possible length are 20 & 15 because
(20^2)+(15^2)=(25^2)