What’s the answer to the question plz

A

Step-by-step explanation:

The inequality 1.25x-6.50>50 says that 1.25 is charged to added per x number of things and that 6.50 is taken away. At the end of this calculation, it must be more than $50. This means B and D are not options because they are always adding not taking away any value. C is not an option because 1.25% converts to 0.0125. As a growth interest it would be 1.0125x not 1.25x. This means A must be the solution.

if the eqn of the parabola is f(x) = (x-4)(x+2), we need to mult. this out to find the coordinates of the vertex.

then f(x) = x^2 + 2x - 4x - 8, and f(x) = x^2 - 2x - 8.

one way in which you can find the vertex is to calculate x = -b / (2a).   here, that comes to

        )

x = = 1.   f(1) = 1^2 - 2(1) - 8 = - 9.   vertex is at (1, -9).

        2(1) 

find another point on the curve:   let x=0, for which y=-8.   then (0, -8) is on the curve.   plot the vertex and this point and draw a smooth parabola thru both.

hope this

i believe the answer is letter c) 8

step-by-step explanation: