Answer:
As the decrease in the tulip's quantity in the both cases is the same, hence the opportunity cost will also be the same required that the marginal cost remains constant.
Explanation:
Opportunity cost is the value lost in opting to alternative option. This means that if an ice cream costs me $10 then the opportunity cost of eating an ice cream would be $10 because I haven't enjoyed an alternative of an ice cream which would be worth $10. Likewise, if I am deciding to attend a party but I have previously purchased cinema tickets worth $50 then the opportunity cost of attending the party would be $50 and opportunity cost of watching movie would be the loss of entertainment at the party.
The opportunity cost of producing 0-300 tulips is $5 per tulip then it is more likely that the cost of producing 600-900 tulips will also be $5 per tulip.
Thus the opportunity cost here for each case will be:
Case1 0-300 Tulips: 300 Tulips * $5 per Unit = $1500
Case2 600-900 Tulips: 300 Tulips * $5 per Unit = $1500
But if the cost of producing first 300 units of tulips are different from the third 300 units of tulip then there will be of course a difference in opportunity cost.
 
        
             
        
        
        
Answer:
Joe will give some milk to Rita in exchange for cookies
Explanation:
Both Joe and Rita want to trade cookies in exchange for milk. However, Joe is willing to trade 2 cookies for one ounce of milk while Rita is willing to trade 4 cookies for an additional ounce of milk. 
The one who is willing to trade the greatest quantity of cookies is Rita and she's willing to trade 4 of them for an ounce of milk (which Joe is willing to trade too). 
Therefore, the most possible escenario would be the one where Joe will give some milk to Rita in exchange for cookies since this way he gets more cookies and they both wanted one ounce of milk anyway. 
 
        
             
        
        
        
Psychoactive drugs capable of altering perception, mood, cognition, or behavior include "stimulants and depressants. opiates and psychedelics. <span>stimulants and psychedelics."
 
Stimulants refers to the drugs that accelerate action in the central nervous system, psychadelic drugs cognizance modifying drugs that deliver fantasies, change perspectives, or disturb the typical view of time and space. Depressants are the drugs that back off movement in the CNS and opiates are the drugs got from the opium poppy, that calm torment and generally create elation.</span>
        
             
        
        
        
Answer:The thirteenth amendment
Explanation:
 
        
                    
             
        
        
        
D The first time a baby makes eye contact with another person