Which is a better buy? A large pizza with a 16-inch diameter for $15.00 or a medium pizza with an 8-inch diameter for $7.50?

The best answer for this would be the medium

I am not to sure on how to explain it besides you'll be getting more outta the two mediums than you would be getting with the single large. If there are 16 slices then the box will be big but slices very thin and what not. Medium boxes with  each will have an average size slice and with two boxes then ya will in my perspective have more.

I order pizza way to often

the polynomial is a perfect square trinomial of the form a^2-2ab+b^2:

option a. true

step-by-step explanation:

9x^2-12x+4

comparing with the form a^2-2ab+b^2

1.) a^2=9x^2

solving for a: square root both sides of the equation:

sqrt(a^2)=sqrt(9x^2)

a=sqrt(9) sqrt(x^2)

a=3x

2.) b^2=4

solving for b: square root both sides of the equation:

sqrt(b^2)=sqrt(4)

b=2

to be a perfet square trinomial 2ab must be equal to 12x. let's check:

2ab = 2 (3x) (2)

2ab = 12x

correct