Hello, please give very good explanations , including listing out the formulas if possible

The Office for National Statistics reports that GDP per capita in the UK was about 26 000 in 2013, whereas GDP per capita in the United States in 2013 was about $53 000. On a purchasing power parity (PPP) basis, GDP per capita is listed as about $36 000 in the UK, and $53 000 in the USA. The average exchange rate in 2013 was about $1.58 per pound.

1. (a)What is US GDP per capita at market exchange rates (expressed in dollars)? Is this higher or lower than the PPP measure?
2. (b)What is UK GDP per capita at market exchange rates (expressed in dollars)? Is this higher or lower than the PPP measure?

(c) Based on your answers above, do you think that the price level is higher or lower in the UK? By how much?

(d) In percentage terms, how much poorer are Brits than Americans when measured at market exchange rates? What about at PPP? Which measure do you think is better?