9. Use four 4s and some addition, subtraction, multiplication, division signs, and parentheses to write four expressions that equal $3, 4, 5,$ and 6 respectively.
$(4+4+4) \div 4=3, \quad 4+(4-4) \div 4=4, \quad(4 \times 4+4) \div 4=5,4+(4+4) \div 4=6$

$(4+4+4) \div 4=3, \quad 4+(4-4) \div 4=4, \quad(4 \times 4+4) \div 4=5, \quad 4+(4+4) \div 4=6$