1) which polynomial is written in standard form for the polynomial below -9x+x^3-x^4+3?

a) -9x+x^3-x^4+3

b) 9x+x^3+x^4+3

c) x^4+x^3+9x+3

d) -x^4+x^3-9x+3

2) what is the degree of the polynomial
3pq^4-2p^2q+q^3?

a) 1

b) 2

c) 4

d) 5

3) which expression is not a polynomial?

a) z+1

b) 2x^4-y

c) 6+w

d) y^2-^3√y+4

See below.

Step-by-step explanation:

1).  Standard form is where the exponents are arranged in descending order.

It's D.   -x^4+x^3-9x+3.

2)

D.  Degree 5 because the term with the highest degrees is 3pq^4.

3)

Its D,  because of the radical √y.

b. would be the answer : )

step-by-step explanation:

step 1: add -16x to both sides.

16x−4y+−16x=64+−16x  

−4y=−16x+64

step 2: divide both sides by -4.

−4y /-4 = -16x + 64/-4

answer:   y=4x−16

hope i'm right