Zack has 3 red fish, 5 yellow fish and 7 green fish. How many fish does he have in all? Select
A) 8 B) 5 C) 15 D) 1 E) 18
3+5+7= 
<gadget id="calculator">3+5+7</gadget>
<output>15</output>
15. Answer is 15
<result>C</result>
Zack has 3 red fish, 5 yellow fish and 7 green fish. How many fish does he have in all?