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8) Number of terms : Monomial

Degree : Constant polynomial

9) Not a polynomial

Step-by-step explanation:

8) Recall that a polynomial with one term is a monomial

A polynomial with a degree of zero is a constant polynomial

Therefore 1 is a monomial, when we classify by number of terms and it is a constant polynomial when we classify by degree since the degree is zero.

9) Note that a polynomial has positive integral indices, therefore   is not a polynomial.

The reason is that, but is not an integer.

4 adults and 12 babies

step-by-step explanation:

4 x 7 = 28

12 x 15 = 180

180 + 28 =208

4 x 3 = 12

(d)

step-by-step explanation:

given: the line in the graph passes through points (5,30) and (6,26).

then, the equation of line is:

now, put y=a(n) and x=n,

hence, option d is correct.