He buys 2 packs of sandwich meat at $5.00 a pack so 2*5.00 = $<<2*5=10.00>>10.00
He buys 2 packs of cheese at $4.00 a pack so 2*4.00 = $<<2*4=8.00>>8.00
The loaf of bread cost $4.00 plus $10.00 for meat and $8.00 for cheese so his total is 4+10+8 = $<<4+10+8=22.00>>22.00
He has coupons to use a checkout so his new total is 22-1-1 = $<<22-1-1=20.00>>20.00
He can make 10 sandwiches from his purchase and his purchase total is $20 so 20/10 = $<<20/10=2.00>>2.00
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