What is the answer to the following puzzle:
a. 3 and 2 = 7
b. 5 and 4 = 23
c. 7 and 6 = 47
d. 9 and 8 = 79
e. 10 and 9 = ?
What is the answer to the following puzzle:
a. 3 and 2 = 7
b. 5 and 4 = 23
c. 7 and 6 = 47
d. 9 and 8 = 79
e. 10 and 9 = ?