We bought 85 hats at the store. Blue hats cost $6 and green hats cost $7. The total price was $600. How many green hats did we buy? Choose the correct choice from the following choices:
A) A)36	B) B)90	C) C)40	D) D)42	E) E)44
Let B be the number of blue hats and let G be the number of green hats.   B+G=85.   B=85-G.   6B+7G=600.   6(85-G)+7G=600.   510-6G+7G=600.   G=600-510= 
<gadget id="calculator">600-510</gadget>
<output>90</output>
90.   The answer is 90.
<result>B</result>
We bought 85 hats at the store. Blue hats cost $6 and green hats cost $7. The total price was $600. How many green hats did we buy?