Juan has preferences that satisfy more is better on bundles of two goods (x, y). In some market situation Juan spends 2/3 of his income in good x. When the price of good x drops by 50%, all the other constant, Juan spends more than 2/3 of his income in good y. We can infer that good x is a Giffen good for Juan.
No.

Yes.

the correct answer would be b, when, queen, calder hall and london.

explanation:

we always capitalize words when a paragraph or sentence is starting, when an important name is used, when a place is being written, or simply when a noun is used, etc. so in this sentence, sentence is starting from 'when', so it will be written in capital letters. secondly, queen is considered to be an important person, so it will also be written in capital letter. next, the name of the town is mentioned, i-e calder hall, which will also be written in capital letters. in the last,   city name is being used, 'london', which will also be written in capital letters. so option b is the most appropriate one.

correct, but each time you dont pay the price of the penalty can increase.

exaclty 30 degrees celcius is the answer