B - 63 Degrees, obviously because all angles add up to a sum of 180 degrees.
40% = 40/100 = 0.40
Find 40% of 20
20 * 0.40 = 8
Solution: 8 students traveled
Answer:
Part A is $21 and part B is $30.21
The angle that is supplementary to <COB is one that is next to it (in some relation)
and when you add the two angles together, they shall equal 180°.
Hope this will help
