TIM has 13 ten-dollar bills, 11 five-dollar bills, and 17 one-dollar bills. If TIM needs to pay exactly $128, what is the least number of bills he will need to use?  Choose one:
A) 68	B) 66	C) 565	D) 16	E) 35
128 is the total sum of money.   as we have 13 10 dollar bills so the closest we can get to 128 using the 10 dollar bills is by using 12 * 10 dollar bils   128-120= 
<gadget id="calculator">128-120</gadget>
<output>8</output>
8   so now we need to get 8 from either 5 dollar bills or 1 dollar bills   8 - 5 (use only 1 5 dollar bill)= 3   so we can get 3 from using 3 $1 bills.   Hence 16 ( 12+1+3 )   ANSWER IS 16
<result>D</result>
TIM has 13 ten-dollar bills, 11 five-dollar bills, and 17 one-dollar bills. If TIM needs to pay exactly $128, what is the least number of bills he will need to use?