prompt: Ray buys a pack of hamburger meat for $5.00, a box of crackers for $3.50, 4 bags of frozen vegetables at $2.00 per bag and a pack of cheese for $3.50 at the grocery store.  Because he is a store rewards member, he gets 10% off of his purchase.  What does his total grocery bill come to?
messages.content: Ray buys a pack of hamburger meat for $5.00, a box of crackers for $3.50, 4 bags of frozen vegetables at $2.00 per bag and a pack of cheese for $3.50 at the grocery store.  Because he is a store rewards member, he gets 10% off of his purchase.  What does his total grocery bill come to?
messages.role: user
messages.content: He buys 4 bags of frozen vegetables for $2.00 a bag so that’s 4*2 = $<<4*2=8.00>>8.00
  The meat is $5.00, the crackers are $3.50, the vegetables are $8.00 and the cheese is $3.50 for a total of 5+3.50+8+3.50 = $<<5+3.5+8+3.5=20.00>>20.00
  He gets 10% discount on his $20.00 purchase so that’s .10*20 = $<<20*.10=2.00>>2.00 off
  His final grocery bill will be 20-2 = $<<20-2=18.00>>18.00
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messages.role: assistant