Music question pls help What is the function of a metronome?

A, to provide an indication of volume

B. to display a sound wave

C. to divide a minute evenly into beats

D. to tell you when you are not in key

36. during the reign of the step pyramid of saqqara was builta. tutankhamunb. ramesses iic. djoserd. khafre37. what are the two kinds of hieroglyphic signs? a. phonograms and ideogramsb. phonograms and anagramsc. ideograms and anagramsd. phonograms and monograms38. what is the name of the famous stele that to break the hieroglyphic code? a. the dead sea scrollsb. the blarney stonec. rosa parksd. the rosetta stone39. usually located on the ground of the temples, obelisks were usually covered from base to near tip with: a. hieroglyphicsb. paintingsc. goldd. mosaica

Suppose that you are in a room with 3 doors and a crack in the ceiling for light. that is all. the doors each have a sign on them that says what there is behind them. door #1. a pool of corrosive acid. door #2. a crocodile that hasn't eaten in 8 months. door #3. a solar "oven". a giant lens that focuses all the sunlight at the entrance of the door. you must choose a door, which door do you choose?

What does bts stand for? what is the importance of bts? who first started it?