Step-by-step explanation: the tangent is 8/6 because it is the opposite (8) over the adjacent (6)
 
        
             
        
        
        
If you mean it costs $1.49 to buy 10 items, then the unit rate is $0.15 or 15 cents
This is because you divide 1.49 over 10 like so: 1.49/10 = 0.149, then round this to the nearest penny to get 0.15
0.15 dollars = 15 cents
so basically whatever this item is, it costs 15 cents per item
 
        
                    
             
        
        
        
Answer:
4v-6.3w+9.8
Step-by-step explanation:
If you distribute the negative sign (same as distributing -1), then you get -(-4v) + (-6.3w) - (-(9.8))
Basically it's switching the signs 
Hope that helped :)
 
        
             
        
        
        
Answer:
m=-12
Step-by-step explanation:
Let's solve your equation step-by-step.
1  / 3
m= −4
Step 1: Multiply both sides by 3.
3*(
1  / 3
m) = (3) * (−4)
m=−12