You collect coins. Suppose you start out with 18. Since you're nice, you give Sharon 3 coins. Since you're nice, you give Steven 4 coins. How many coins do you have at the end?  Choose the correct choice from the following answers
A) 2
B) 3
C) 4
D) 5
E) 11
Solution   Start with 18 coins.   Sharon takes 3 coins from you:   18 - 3= 
<gadget id="calculator">  18 - 3</gadget>
<output>15</output>
15 coins.   Steven takes 4 coins from you:   15 - 4= 
<gadget id="calculator">  15 - 4</gadget>
<output>11</output>
11 coins.   So you have 11 at the end.   Correct answer : 11
<result>E</result>
You collect coins. Suppose you start out with 18. Since you're nice, you give Sharon 3 coins. Since you're nice, you give Steven 4 coins. How many coins do you have at the end?