Answer:
   3
Step-by-step explanation:
All factorials 5 and above are evenly divisible by 15, so have no remainder. Thus, you are interested in ...
   mod(1! +2! +3! +4!, 15) = mod(1 +2 +6 +24, 15)
   = mod(33, 15) = 3
The remainder is 3.
 
        
             
        
        
        
Answer:
x=-2
Step-by-step explanation:
-9x+1=-x+17
Add 9x on both sides:
      1=8x+17
Subtract 17 on both sides:
    -16=8x
Divide both sides by 8:
      -2=x
Check x=-2!
-9x+1=-x+17     with x=-2
-9(-2)+1=-(-2)+17
18+1=2+17
19=19
19=19 is a true equation so x=-2 is correct.
 
        
                    
             
        
        
        
Hi!
We need to find the cost per ounce. 
2.10/16 = 0.13125
It costs 0.13125 per ounce. 
Now find the cost of 12 ounces. 
12 * 0.13125 = $1.58
The answer is $1.58
Hope this helps! :)
-Peredhel