Answer is
8x 9x 11 and 16x
in the first boxes and
33x + 11 in the second box
Step by step
Perimeter is adding all four sides. Put each number in a box. Add them together for the second box.
Notice one side (11) does NOT have an “x” so it cannot combine for the second answer of 33x + 11.
You can combine like terms of “x” but you can’t combine the unlike term of 11.