2x+2≥20
2x≥18
x≥9
closed circle on 9 because of the = in ≥ and the line going off to the right
please ask if you need more information or clarification
we know that
The vertex of the function
is the point 
The vertex of the function
is the point 
The x-coordinate of the vertex is equal to h
the y-coordinate of the vertex is equal to k
so
the value of h is 
the value of k is 
the equation is

therefore
<u>the answer is the option a</u>

This shape would be a rectangular prism, with 4 rectangular sides, and 2 square or smaller rectangular sides.
An example of a rectangular prism would be a brick. It has 4 sides that are perfectly alike, then two other sides that are like each other.
180a^3+900a^3+4a-5
__________________ + a-1/ 6a^a
6a ( a+ 5)