Chujai's weekly income allowance for snacks is 300 baht and she buys 5 bars of chocolate per week. When her income increases to 330 baht, chujai buys 6 bars per week. The income elasticity of chujai's demand for chocolate is about:.

Arecycling company gives you 5 cents for every plastic bottle and 10 cents for every glass bottle. from a certain individual the recycling company received 59 bottles and paid $4.55. how many glass bottles did the individuals recycle?

You have a poultry farm and a poultry-processing unit. which product can you make using the waste products from your processing unit?

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