Answer:(5 + x)(2x + 10)
Step-by-step explanation:
Im pretty sure its that
11, 13, 15
...............
Slope 2/1, y intercept is 6, equation is f(x)=6-2x
It’s a semicircle, so it would be 1/2 pi r^2.
The sixth number should be 16 in order for the mean to be 12