A survey of fruit tree growers showed the following 47 grew raspberries, 31 grew blueberries, 15 grew strawberries, 6 grew all 3 types, 18 grew both raspberries and blueberries, grew both raspberries and strawberries, 9 grew both blueberries and strawberries, 15 grew none of these tree. Create a Venn diagram to reflect the data, lable the diagram clearly. Then employ the diagram to answer the following questions:
a. how many grew only strawberries
b. how many grew both blueberries and stawberries, but not raspberries
c. how many grew only blueberries
d. how may grew none of these three or only raspberries
e. how many fruit tree growers were surveyed?