Question 1112989
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{{{(3.20 +0.90*40)/4}}} dollars.   &nbsp;&nbsp;Or simpler,  &nbsp;{{{3.20/4 + 0.90*10}}} &nbsp;dollars,  and from this point you can calculate the answer MENTALLY.
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Should I explain that if &nbsp;$0.45&nbsp; goes for each &nbsp;1/2&nbsp; km, &nbsp;then &nbsp;$0.90 &nbsp;goes for each kilometer ?