Classify each expression as a polynomial or not a polynomial. 3x^2−5x^4+2x−12 x^5−5x^4+4x^3−3x^2+2x−1 x^−5−5x^−4+4x^−3^−3x^−2+2x^−1−1 4√x-3+4√x−8x+16 x^3+7x^2+9x−5x^4−20

1. yes

2.yes

3. no

4. no

5. yes

square pyramid

step-by-step explanation:

square prism looks like nothing like that

triangular prism has a rectangular base instead of a square base

tetrahedron has a triangular base

whose power in the senate is equal to the power of the speaker of the house?

step-by-step explanation: