How many 7 in between 1 to 80?  Select
A) 18	B) 20	C) 22	D) 23	E) 24
7,17,27,37,47,57,67,   70,71,72,73,74,75,76,77(two 7's),78,79   18 7's between 1 to 80   18NSWER:18
<result>A</result>
How many 7 in between 1 to 80?