Answer:
x=-1
Step-by-step explanation:
By adding the bottom lines you can get
2x+11 = x+10
Simplifying this gets you
x=-1
Answer: 70 ft
Step-by-step explanation:
Given
height of book is measured by the function is

when the book is thrown 

The height of the book is 
Center:
Center is a point in space, which is at equal distance from all the others points in that space.
Answer:
right prism
Step-by-step explanation:
If the faces are rectangles, then this prism is called a "right prism"
Answer:
36
Step-by-step explanation:
-9*-4=36