Which represents a quadratic function?

A; f(x) = −8x^3 − 16x^2 − 4x

B; f(x) = 3/4 x^2 + 2x − 5

C; f(x) = 4/x^2 - 2x +1

D; f(x) = 0x^2 − 9x + 7
WILL MARK BRAINLIEST!

B

Step-by-step explanation:

since the variable never become denominator, the highest power is 2, and the coefficient of x² is non zero

the answer is 99.

answer: bea's uncle is 25 years old.

step-by-step explanation:

given the equation , we can say that the variable "x" represents the age of bea's uncle. then to find his age, we need to solve for "x":

we must add 15 to both sides of the equation:

now we need to divide both sides of the equation by 3:

therefore, we can conclude that bea's uncle is 25 years old.