If someone is 54 inches tall how tall are they in meters

Look at this expression. a3b3c a-3b-3c-1 which of the following is the simplest form of the expression above?

During your cycling trip, you and your friends often stayed in hostels. the prices of these are listed below. hostel standard room (price per night) with breakfast (price per night) super sleep hostels £22.45 £28.65 normandy nights £18.55 £25 zzzola hostels £24.50 £30.99 belgian beds £11.20 £18.55 night-time rest days ? £33 what is the range in cost for a single night, including both standard room prices and with breakfast prices?

If sr is 4.5cm and tr is 3cm, what is the measure in degrees of angle s?