A little tip: you should put the question in next time :)!
        
             
        
        
        
Well, we have 700 novels and we want to choose 3 novels, so we use a combination : 700 c 3 (using the nCr button on a TI calculator) is 56,921,900. So, the answer is 56,921,000! Hope this helps!
        
                    
             
        
        
        
Answer:
15 + 0.05x ≤ 50 
Step-by-step explanation:
The cost needs to be less than or equal to 50. Thus, the equation would be
15 + 0.05x ≤ 50