In simple interest, the interest rate is
i=(10500-9000)/9000=16.67%
In compound interest, compounded monthly,
10500=9000(1+i/12)^12
=>
APR=12(10500/9000)^(1/12)-1
=11.155%
(effective interest is still 16.67%)
        
             
        
        
        
Answer:
The correct answer is letter "A": economists include opportunity cost in zero economic profit, while accountants do not include opportunity cost in zero profit.
Explanation:
Normal profit is an economic term that means zero economic profits. To an economist, this is normal since total revenue equals total cost which includes both explicit and implicit costs. It differs from the accounting profit or zero profits since the latter does not take into consideration implicit cost.
 
        
             
        
        
        
The challenge of indirect benefits occurs when the social, economic, or environmental benefits of a company's sustainability commitments do not directly benefit primary customers or clients.
<u>Explanation:</u>
An indirect gain is a profit which can not be directly measured but is still appreciated-as opposed to the more readily quantified direct benefits like decreased headcount or increased revenue. The indirect advantages progress only when the customers or clients are also benefited, otherwise one or another day the failure of such tactics, destruction of  image of firm, etc would happen.
Labor productivity is the best illustration of a technology's indirect gain; greater performance does not necessarily contribute to the elimination of an ongoing cost element but is understood in the context that it helps workers to do their roles better and quicker.
 
        
             
        
        
        
The pharmacist needs to measure out 17.5 grams of the 50% powder and 17.5 grams of the 90% powder and should end up with 35 grams of the 70% powder thus making for an easy method of calculation for mixing the two powders.