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!

Solve with work both bert and ernie received an increase in their weekly salaries. bert's salary increased from $520 to $520. ernie's salary went from $580 to $645. find the percent of increase for each salary. what was the larger of the two percents ?

The zoo collects $9.60 for every 24 tickets sold. how much will be collected for 400 tickets?

Determine the common ratio and find the next three terms of the geometric sequence. 10, 2, 0.4, a. 0.2; -0.4, -2, -10 c. 0.02; 0.08, 0.016, 0.0032 b. 0.02; -0.4, -2, -10 d. 0.2; 0.08, 0.016, 0.0032 select the best answer from the choices provided a b c d