Which expressions are polynomials? Select each correct answer. 6+w. 2x^4 -y. z+1. y^2 -^3√y +4​

Ideally, the backrest is tilted back slightly, so when you turn the wheel your shoulders are the seat.

You find a mysterious, dull substance on the ground and pick it up for a closer look. it is powdery, very light, and soft to the touch. the substance is most likely i. an organic mineral ii. a metallic mineral iii. a nonmetallic mineral i only ii only iii only i and ii i and iii

Most small cars a. more power than larger cars b. the same power as larger cars c. less power than larger cars