Emma is planning a dinner party, so she went to a shop to buy the products she needs. She bought 8 kg of cheese and 7 kg of vegetables. One kilogram of cheese costs $4 and one kilogram of vegetable costs is $2 more expensive. How much did she pay for her shopping? Let's be accurate as possible.
Emma payed 8 kg * $4 / kg = $32 for the cheese. The cost of one kilogram of vegetable is $4 + $2 = $6. So Emma payed 7 kg * $6 / kg = $42 for vegetables. In total Emma payed $32 + $42 = $74 for her shopping.
The answer: 74.