An expression must have a monomial of degree 2 or higher to be a polynomial.

a. true
b. false

True - depends on context

Step-by-step explanation:

Polynomial means "many terms' and must have 2 or more terms which includes binomials. If this is true, then the expression is false because x+2 is a polynomial specifically binomial without degree 2. This is because we applied the definition of a polynomial loosely.

However, in terms of functions and with s stricter definition then polynomials are expressions with degree 2 or higher usually with 3 or more terms. Then it is true.

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step-by-step explanation:

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it is contrapositive

i could not see the question too well so check yourself again too . this is because i want you to get it correct.