Which expressions are polynomials?

Can someone please check my work?

Both of your answers are correct.

Rules for polynomials:

1) If all of the variables

in a expression has exponents

that are positive, it is a

polynomial.

2) If the expression

has a negative exponent,

it's not a polynomial.

3) If the expression

has a fraction, it is

not a polynomial.

well there are two answers for that.

1: you need 120 ones then that will equal up to 120.

2: you could also do one 100 and 2 tens.

those are the answers that i have thought of.

saving = more money

step-by-step explanation:

if you have 100 bucks, and you want to buy a candy bar, even if you have one at home, if you choose not to buy it, you save.

~courtney