Answer
a.) 90$^{\circ}$-x$^{\circ}$
b.) 102$^{\circ}$-3x$^{\circ}$
c.) 90$^{\circ}$-2x$^{\circ}$-5y$^{\circ}$
Work Step by Step
To find the second of two complimentary angles you subtract the value of the given angle from 90$^{\circ}$.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.