Asap 25 pts + brainliest to right/best answer
i have no idea how to answer this?

c 4

Step-by-step explanation:

x^2 -4x

b is -4

Divide by 2 and then square it

-4/2 =2

2^2 =4

We need to add 4

$9.89

step-by-step explanation:

9.90 = p x .06 x .25 (3/12 changed to a decimal)

9.90 = p x 0.015

9.90 - 0.015 = p

9.89 = p