A coin collection contains nickels and quarters. There are 30 coins in the collection. The number of quarters is 2 more than the number of nickels. How many nickels are in the collection?
A 17
B 16
C 19
D 14

The number of nickels is 8+2q (q being quarters).  so if 8+2q=42, subtract 8 from both sides.  That gives you 2q=34.  Now, divide both sides by 2.  q=17.  17 quarters .

Step-by-step explanation:

Hope This Helps!

the answer is b.

step-by-step explanation:

identity property is where 0+whatever number=whatever number. basically 0+ a number.