Baby Polar Bear

Congratulations, you got the baby hedgehog! Unfortunately, the FAMPO commander's bratty kid still has more homework and he's demanding that you help him.

But now that they know you are collecting baby animals, they have offered you this baby polar bear if you can solve the problems below.

Good luck!

Problem 9: just a number

Problem 10: just a number

Give a polynomial according to the example below.
Always put the number first, then the variables in alphabetical order
Order the monomials by the variable that comes first alphabetially with the highest power first
For example: a^2+18*a*b+81*b^2

Problem 11:

Problem 12:

Problem 13:

Problem 14:

Problem 15:

Problem 16:

Solve these problems to get the baby polar bear!