Isaac draws a regular octagon and rotates it about its center. which angle measures can isaac rotate the regular octagon through to map it onto itself? select each correct answer. 30° 45° 90° 120° 135° 180°

Simplify 15(x - 4)(x -1)-3(x + 4)(x - 1) with steps

Nick has box brads. he uses 4 brads for the first project. nick let’s b represent the original number of brads and finds that for the second project, the number of brads he uses is 8 more than half the difference of b and 4. write an expression to represent the number of brads he uses for the second project.

Given: circle o, cd is diameter, chord ab || cd. arc ab = 74°, find arc ca.