You are adding 6 to each number. (N-1)+6, I guess
        
             
        
        
        
18 gallons of milk had passed the expiration date.
Explanation step by step
Multiply 120x 15%
Turn 15% into a decimal which is 0.15 so now it’s 120x0.15 which equals to 18.
        
             
        
        
        
Answer:
 72.17 m  to the nearest hundredth.
Step-by-step explanation:
It is sin not cos.
We use the Sine Rule to do this
a / sin A = b / sin C = c / sin C.
Here we have:
 100 / sin 49 =  x / sin 33
x =  100 * sin 33 / sin 49
= 72.17 m.