Answer:
Each book cost $37 dollars.
Step-by-step explanation:
351 - 18 = 333
333 ÷ 9 = 37
 
        
             
        
        
        
If angle ec is a bisector then angles Bec and ced are the same making them both 4x+1. we know a line segment equals 180°. so if we take the 11x-12 and add it to 2(4x+1) we end up with 19x-10=180. you add 10 to both sides and get 19x=190 then you divide by both sides. you'll end up with x=10. you plug In the 10 with aeb and aec and add them together to get 139°. if you're looking for the equation, it's 15x-11.
        
             
        
        
        
Answer:
1. 20² = 400
2. 4⁴ = 256
3. 2⁷ = 128
4. 3⁵ = 243
5. 10³ = 1,000
6. 7⁶ = 117,649
7. 25³ = 15,625
8. 5⁷ = 78,125
9. 6.5² = 42.25
i wasnt really sure what you meant but i hope this helps
 
        
             
        
        
        
1L = 1000 mL
Multiply 10 x 1000 = 10,000
So 10,000 mL