An astronomer wishes to measure on a photograph the distance between the image of a certain star and three other star images nearby. if eight images are nearby how many choices of the three stars does he have

the first thing you will need is patience a simple drawing can take 2 years the more time the better, you will start by copying some drawings and when you get better at it you can start doing your own drawings. when your drawing you need to be super patient. even proffessionals learn new things all the time. i hope this advice .

this musical excerpt is an example of piano volume. (true) !