Carl wants to buy a new coat that is quite expensive. He saved $25 each week for 6 weeks.  On the seventh week, he had to use a third of his saving to pay some bills. On the eighth week, his dad gave him some extra money for him to buy his dream coat. If the coat cost $170, how much money did his dad give him?
Carl saved in 6 weeks $25/week x 6 weeks = $
<gadget id="calculator">25*6</gadget>
<output>150</output>
150.
On the seventh week, he ended up having to pay in bills $150/3 = $
<gadget id="calculator">150/3</gadget>
<output>50</output>
50.
His savings were then $150 - $50 = $
<gadget id="calculator">150-50</gadget>
<output>100</output>
100.
His dad gave him $170 - $100 = $
<gadget id="calculator">170-100</gadget>
<output>70</output>
70.

<result>70</result>