Answer:
In each shelves there are 64/4 books I.e. 16.
Answer:

Step-by-step explanation:
Note that because BD is an angle bisector, then angle XBD and angle DXY are equal. Also note that BYD and BXD are equal because they are both right angles. Also, by the transaitive property, BD = BD. Therefore, it can be concluded that BXD is congruent to BYD.
Therefore, we must solve
.
58.50
10%= 4.50
5%= 2.25
6.75*2= 13.50
45+ 13.50= 58.50
X= 3/2 like the fraction 3 over 2
Answer: X = -10
Step-by-step explanation:
Times two to the parentheses
Minus X from both sides, left with 3X-16=-46
Add 16 to both sides 3X=-30
Divide both sides by 3
Answer X=-10