The least common multiple of 4 and 7 is 28 I think sorry I haven't been in school for a week
        
             
        
        
        
Answer: The fourth choice
Step-by-step explanation:
(f - g)(x) = f(x) - g(x) = 4
 - 5x - (3
 + 6x - 4) = 
 - 11x + 4
 
        
             
        
        
        
Answer:
20
Step-by-step explanation:
16-12/4+3(6-2)      subtract 6 and 2
16-12/4+3+4          divide 12 and 4
16-3+3+4              subtract 16 and 3
13+3+4                 add all 3 numbers
13+7
20
 
        
             
        
        
        
Ok so let me help you with this. Here is the procedure:
 <span>r² = x² + y² = 8² + 6² = 100 
r = 10 
x = r cosθ 
y = r sinθ 
sinθ = y/r = 6/10 = 3/5
</span>Hope this is what you are looking for