Answer: A) Prototype
Explanation:
The first model shown to entrepenuers are called prototypes 
proto- before
 
        
             
        
        
        
The answer is B because both have access to capital that competitive markets wouldn’t give them because they dominate the market place and drive out competitors
        
             
        
        
        
Answer:
A) firm offer rule
Explanation:
The firm offer rule states that an offer shall remain open and firm until its expiration date (in this case a fortnight). Stelwire LLC can revoke an offer (anyone can) but in order to do so, it must notify the other party about the revocation. If Stelwire LLC didn't properly revoke the offer before Ralph accepted it, then they are liable for it.
 
        
             
        
        
        
Solution:
Given Information,
Heat input is (  ) = 5.5 ×
 ) = 5.5 ×  Btu/h
 Btu/h
Combustion efficiency of the boiler ( ) = 0.7
) = 0.7
Combustion efficiency after turn up ( ) = 0.8
) = 0.8 
Operation Hour (t) = 5200h 
Unit cost (c) = 
Calculate heat output from the boiler   =
 =  x
 x 
                                                                       = 5.5 x  x 0.7
 x 0.7
                                                                       = 3.85 x  Btu/h
 Btu/h
Calculate the heat input to the boiler after the tune-up
 =
 =  /
 / 
                = 3.85 x  / 0.8
 / 0.8
                = 4.8125  x  Btu/h
 Btu/h
Calculate the saved energy after the tune-up
 =
 =  -
 - 
                  = 5.5 x  - 4.8125  x
 - 4.8125  x  Btu/h
 Btu/h
                  = 0.6875  x  Btu/h
 Btu/h
Calculate the annual energy saving (  )
 )
 =
 =  x t
 x t
            = ( 0.6875  x  Btu/h ) ( 5200 hr/yr)
 Btu/h ) ( 5200 hr/yr)
            = 3575 x  Btu/h
 Btu/h
Calculate the annual cost saving 
Annual cost saving =  x Unit cost
 x Unit cost
                                 = 3575 x  Btu/h x
 Btu/h x 
                                 = 82225