Simplify by combining similar terms: 17). 8a + 2b + 16a + 3b +5 = 18). 3x2+ 2x + 5x2 + 7x + 6 = 19). 3 nickels + 3 dimes + 3 quarters + 4 nickels + 5 dimes + 6 quarters= 20). 7 crackers + 6 biscuits + 5 cookies + 4 crackers + 3 biscuits + 2 cookies = |