Question

Does anyone know the answers to these questions? I'm completely lost.

Answer 1

What are the definitions of complementary and supplementary?

Answer 2

supplementary angles means that the angles add up to 180 degrees

Answer 3

Okay

Answer 4

You have the equations 3x and (x+7) to represent the angles measures. You can solve for x by doing this
3x + (x + 7) = 180

Answer 5

Okay, with you so far lol

Answer 6

For number 2, corresponding angles are congruent. you have two corresponding angles with equations (2x + 5) and 110 representing the anglle measures
you can solve for x by doing this:
2x + 5 = 110