c = 12
Work Step by Step
Substitute the values for P, a, and b into the equation: P = a + b +c 30 = 8 + 10 + c Solve for c: 30 = 18 + c 12 = c
You can help us out by revising, improving and updating this answer.Update this answer
After 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.