You collect coins. Suppose you start out with 15. 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?  Select:
A) 2  B) 3  C) 8  D) 5  E) 6
Solution   Start with 15 coins.   Sharon takes 3 coins from you:   15 - 3= 
<gadget id="calculator">  15 - 3</gadget>
<output>12</output>
12 coins.   Steven takes 4 coins from you:   12 - 4= 
<gadget id="calculator">  12 - 4</gadget>
<output>8</output>
8 coins.   So you have 8 at the end.   8orrect answer : 8
<result>C</result>
You collect coins. Suppose you start out with 15. 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?