In plants, transpiration is a process which is inevitable but potentially harmful, because it can cause loss of water. Loss of water can lead to wilting and eventual death of the plant. Even a little stress can interfere with the plant's growth process. 
But, at the same time, transpiration is necessary because of a number of reasons - the transpiration stream aids the processes of mineral absorption, water absorption, energy exchange, helps provide the plant with optimum turgidity, it helps the exchange of gases and so on.
        
             
        
        
        
The answers are shown below:
In part A: 
             coefficient = 20
             variable = c
             constant = 35 & 23.50
In part B: 
            savings = 20 (3) +23.5+ 35+35+35 +35 +35 +35+35+35+35+35+35+35
            savings = $ 503.5
In part C:
            the new expression will be: 25c + 35 + 23.5
        
             
        
        
        
Answer:
make more money
Explanation:
if a popular flower is available all year round, there is more time for people to be able to buy that flower and it would rarely run out