Which polynomial represents the sum below?

(4x4 - x2 - x) + (x4 + x3 + x2 + x - 1)

a. 5x4 + 2x4 + 2x2 - 1
b. 5x4 + 2x4 - 1
c. 5x4 + x3 - 1
d. 5x4 + x4 + 2x2 - 1

On this question. a hypothermia occurs when a person's body temperature drops below 95 degrees fahrenheit. write and solve an inequality that describes how much lower the body temperature of a person with hypothermia will be than the body temperature of a person with a normal temperature of 98.6 degrees fahrenheit