There is no way to measure this. However, if it was multiple choice with four possible answers, and one was correct, then you would have a 25% chance of getting it right.
Answer:
$7.67
Step-by-step explanation:
So if 8 pens cost $4.72, one pen would cost $0.59. 0.59 x 13 will be equal to 7.67.
Answer:
D) 
Step-by-step explanation:
The first step is to find the vertex.
Start with getting your coefficients:
a = 1, b = -6, c = 6
plug them into the equation 


Plug that back into the original equation to get y = -3
The vertex is going to be (3, -3)
The equation for Vertex Form is given by 
(a) being the coefficient in front of the 
(h) being the first point on the vertex (h,k) ({3},-3)
(k) being the second point on the vertex (h,k) (3,{-3})

Answer:
The answer is below. Sorry that this is late.
Step-by-step explanation:
Hope this helps!
Since the number to the right of the ones place is a 2 (even if it's a .2) it is less than 5 so you would have to round down (if it was a 5 or more than you would round up). So the answer is 1864.