to find the drink... if 6 cartons cost 3 pounds you want to find the ratio so in this case it's 2:1 you can buy 2 drinks with every pound. if you have 2 pounds that's 2x2=4
to find the cakes finding the ratio again... the ratio would be 5:4 and I don't presicely know to find this but i'm guessing the answer would be 5 or 5.5