Which expression is not a polynomial?

A) 4x^-1 + 5x - 2

B) x - 5

C) 1/3x

D) x^3 + 4x + 3

(Also can you explain what a polynomial is?)

The square of a negative number is 28 more than three times the negative number

What expression is equivalent to 4x/5-2x/3

Find the inverse of the function. f (x) = 7x + 2

Which of the following is true? O 3/8 > 37.5% > 0.375 O 9/11 > 0.81 > 80% O 34% > 3/2 > 0.33 O 1/12 > 1.12 > 12%

Use the diagram to solve. what is 135% of 280

While hiking, Sanjay went up 200 meters. If Sanjay started at 500 meters above sea level, which integers represents his elevation now?

Select the angle that correctly completes the law of cosines for this triangle. 72 + 252 - 2 (7) (25) cos ___ = 242 A. 180° B. 90° C. 16° D. 74°

What is 8/9 as a percentage

A right triangle has one leg with a length of 10 m and another left with a length of 12 m. What is the length of the third side of the triangle? OA) 22 meters OB) 15.6 meters OC) 6.6 meters D) 2 meters

Write each decimal as a fraction or mixed number in simplest form. 1.) 0.83 2.) 3.75 I need the answer to these two, for the 0.83 I got 83/100