1. 15
2. 9/14
3. 5/8
4. 2
5. 8.4*10 exponent -3
6. 90
7. 0.0025
8. -60
9. 15 
For 9 I’m not that sure but I’m guessing it’s an absolute value question???
Btw can I have brainliest? Lol
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
 
        
             
        
        
        
Answer:
b 
Step-by-step explanation:
a x (b + c) = (a x b) + (a x c) 
 
        
                    
             
        
        
        
Answer: Its surface covers  1400 cm²
Explanation:
 Since the length of painting = 40 cm
 Breadth of painting = 35 cm
Since we know that area of rectangle is product of dimensions. 
∴ Area of painting = length × breadth 
 = 40 cm × 35 cm
 = 1400 cm²
∴ Its surface cover  1400 cm².
 
        
             
        
        
        
Step-by-step explanation:
l = length
w = width
l/w = 5/2
l = 5w/2
l×w = 1000ft²
(5w/2)×w = 1000
5w²/2 = 1000
5w² = 2000
w² = 400
w = 20ft
l = 5w/2 = 5×20/2 = 5×10 = 50ft
the length is 50ft.
the width is 20ft.