$(71-7) \div 2 = 32$ 
Teacher Judy has $71$ stickers in total, and she gives all the stickers to her students Martin and David. Martin gets $7$ more than David. How many stickers does David get? 

a: $$29$$ 
b: $$30$$ 
c: $$32$$ 
d: $$35$$ 
e: $$39$$ 