The angle is sin inverse 0.3535 which is around 21 degrees
63 5 tens=50
13 ones=10 and 3 leftover 50+13=63
Apparent magnitude isn’t the actual brightness, it’s what the brightness appears to be from earth, absolute brightness is the actual brightness an example is our sun it appears bright on earth but in space it is so much more brighter
There are 1000 millimeters in a meter and 0.001 meters in a millimeter
The solution for the system of equations are:

Attached is the graph of lines y=3x-2 and y=-2x+5.