Steps to solve:
15 + 2a = 35
~Subtract 15 to both sides
2a = 20
~Divide 2 to both sides
a = 10
Best of Luck!
 
        
             
        
        
        
She earns 32.40 for working 4 hrs.....32.40/4 = 8.10 per hr
y = 8.10h...where y is the amount of money earned and h is the number of hrs worked
        
             
        
        
        
There are 8 pigs to every 3 sheep
8 pigs +3 sheep is 11 ÷165 is 15 
15×8 is 120
15×3 is 45 
so there was 45 sheep
        
                    
             
        
        
        
Answer:
Mary should buy 6 bags
Step-by-step explanation:
To find the answer multiply  by 15
 by 15

So 6 Ib of trail mix will be perfect for the whole group