Answer:
9.99
Step-by-step explanation:
Answer:
adjacent, linear pair, supplementary
Step-by-step explanation:
adacent because they are angles side by side
linear because the angles create a straight line
supplementary because the angles equal 180 degrees
Answer:
5; 10; 20.
Step-by-step explanation:
the 1st step is shown with orange colour, described on the right part; the 2d step is shown with blue colour, described on the right part of the picture.