Use the diagram to answer the following Identify two pairs of adjacent angles

Identify a pair of vertical angles

b + c =
degrees

If the sum of the measures of a and b is 280 degrees, what is the measure of angle c?
degrees

Iam so stuck. what is the worked out answer for this question?

If sec theta = 5/3 and the terminal point determined by theta is in quadrant 4, then

Question 6(multiple choice worth 5 points) (05.02 lc) what is the value of x? a right angle is shown divided into two parts. the measure of one part of the right angle is 10 degrees. the measure of the other part is 2x 20 40 45 85