SQ Riddle to Riddle Mystery Cache

Posted coordinates will take you to the entrance. This is located in the Riddle Cemetery. Since this is in a cemetery, please be respectful of the area and of any people that may be there. There is a Michigan law that you can only be in a cemetery from dusk to dawn. 

Figure out the following simple math riddles to get the final coordinates. You need a number answer for each riddle.

N42 3A.BCD

W083 5W.XYZ

A= How many months have the letter "r" in their name?

B= A farmer has 17 sheep, all but 9 of them die. How many are left?

C= Whats the difference between an old dime and a new nickel?

D= What number is missing in this sequence: 1, 3, __, 13, 21?

W= What number do you get when you multiply all of the numbers on a telephone's number pad?

XY= If you count from 1 to 120, how many 7's will you pass on the way?

Z= You have 14 brown socks, 14 blue socks and 14 black socks in your sock drawer. How many socks must you remove (without looking to be sure) to have a matched pair?