10. Charging Interest
11. you tend to purchase more things
12. Interest
13. Credit 
14. True
15. Personal Finance 
16. Money 
17. Currency
18. Credit
19. Debt
20. Interest
Hope this helps!!
        
             
        
        
        
Answer:
The researcher is confounding the sweetness of the cereal and the colour of the cereal.
Explanation:
Based on the results, it would be unclear if the subjects prefer the cereal because of the colour or because of the sweetness --it is only the latter the researcher wants to know about. This would be the dependent variable.
To fix this, the researcher should use the same colour for both sweetened and unsweetened cereal and have each preschooler try both. It is possible to colect data through observation (look at the children's reactions) or simply asking for their opinions at the end of the experiment.
 
        
             
        
        
        
Answer:
One can gain insight into famous people and times 
Explanation:
because an auto biography is most likely being written by a famous person
 
        
             
        
        
        
 1.<span>nervous system
2.</span><span>cerebrospinal fluid</span>