Step-by-step explanation:
In mathematics, a polynomial is an expression consisting of indeterminates and coefficients, that involves only the operations of addition, subtraction, multiplication, and non-negative integer exponentiation of variables.
since there is a term of m^-1 (a negative exponent) that we cannot combine with others (as it is not multiplied with another m-based term), it is NOT a polynomial.
1.ture
2.false hope i helped
It would be 12 inches plus 5/4 because 1/2 =2/4 so 2/4+3/4 =5/4 your answer is 13 1/4 or 53/4 hopes this answers your question
All three methods would be efficient