You and your friends are going to McDonald's for burgers and fries, and you need to decide between two deals that are being offe
red. The first deal is getting 4 burgers at b dollars each and 3 fries at f dollars each, which will cost you $26. The other deal is getting 2 burgers at b dollars each and 5 fries at f dollars each, which will cost you $20. What is the cost of each burger and each fries?
