Fill in the blanks below in order to justify whether or not the mapping shown represents a
function.
Set A
Set B
2
9
6
-2
7
0

Parabolas y=−2x^2 and y=2x^2 +k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.

What is the greatest number of parts of a circle that can be formed by cutting the circle with 7 straight cuts? (note: the parts do not have to be equal in size)

Given the net of the rectangular prism, what is its surface area?