Answer:
3. 9x
4. D. -5v + 4
Step-by-step explanation:
3. (-3+12)v 
= 9v
4. Combine like terms:
(-2v - 3v) + (8 - 4)
= -5v + 4
 
        
                    
             
        
        
        
Answer:
???????????//?///
Step-by-step explanation:
 
        
             
        
        
        
Answer:
$43.20
Step-by-step explanation:
To find the original purchase price, write a proportion and solve. A proportion is an equation where two ratios are set equal.
If the discount if 15% then you pay 85%.

To solve for y, cross multiply the numerator and denominator of each fraction.
36.72(100) = 85y
3672= 85y
43.2 = y
 
        
             
        
        
        
Answer:
(If they were talking about 3,335, then) 100 times greater
(If they were talking about 3,335 then) 10 times greater
Step-by-step explanation:
When you visualize it, ignore the other numbers and think of only the threes.
Count how many spaces/places they are from each other, and that's how many 0s you should put after a 1 as your answer.
Same as decimal moving and multiplying by 10's.